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For fix “Non-terminating decimal expansion; no exact representable decimal result.\” in java

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“Non-terminating decimal expansion; no exact representable …

If the quotient has a nonterminating decimal expansion and the operation is specified to return an exact result, an ArithmeticException is thrown.

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Source: stackoverflow.com

Date Published: 2/9/2022

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Non-terminating decimal expansion; no exact representable …

If the quotient has a nonterminating decimal expansion and the operation is specified to return an exact result, an ArithmeticException is thrown.

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Source: intellipaat.com

Date Published: 9/24/2022

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How to fix “java.lang.ArithmeticException: Non-terminating …

ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result.” when we use java.math.

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ArithmeticException (Non-terminating decimal expansion …

ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result. at org.drools.core.runtime.rule.impl.

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Date Published: 3/28/2021

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ArithmeticException: Non-terminating decimal expansion

This exception is thrown when the result of a division is recurring (never ending), and we haven’t specified rounding mode/scale. In other words, BigDecimal won …

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Source: www.logicbig.com

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Non-terminating decimal expansion – actorsfit

Non-terminating decimal expansion; no exact representable decimal result. … Since the number of decimal places is not specified when doing division, this error …

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ArithmeticException: “Non-terminating decimal expansion; no …

ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result” – Exception handling is the process of responding to the …

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ArithmeticException: Non-terminating decimal expansion; no exact …

ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result. · ROUND_CEILINGIf BigDecimal is positive, do ROUND_UP operation; …

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Non-terminating decimal expansion; no exact … – Develop Paper

Non-terminating decimal expansion; no exact representable decimal result. Time:2022-2-18. Exception when BigDecimal calls dive() method: non terminating …

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Non-terminating decimal expansion; no exact representable decimal result. Gratitude and resentment. 2022-04-09 20:56:56 【A Virgo – code cleaner procedural ape】 …

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How to fix \”Non-terminating decimal expansion; no exact representable decimal result.\”

주제에 대한 기사 평가 non terminating decimal expansion no exact representable decimal result

  • Author: Jack Rutorial
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  • Date Published: 2018. 3. 26.
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What is non-terminating decimal number?

A non-terminating, non-repeating decimal is a decimal number that continues endlessly, with no group of digits repeating endlessly. Decimals of this type cannot be represented as fractions, and as a result are irrational numbers.

What is non-terminating number example?

Non-terminating decimals are the one that does not have an end term. It has an infinite number of terms. Example: 0.5444444….., 0.1111111….., etc.

What is terminating decimal expansion?

A number has a terminating decimal expansion if the digits after the decimal point terminate or are finite. The fraction 5/10 has the decimal expansion of 0.5, which is a terminating decimal expansion because digits after the decimal point end after one digit.

What is scale and precision in BigDecimal?

A BigDecimal consists of an arbitrary precision integer unscaled value and a 32-bit integer scale. If zero or positive, the scale is the number of digits to the right of the decimal point. If negative, the unscaled value of the number is multiplied by ten to the power of the negation of the scale.

What is non terminating decimal expansion 10?

A non-terminating decimal is defined as a decimal expansion that has an infinite number of decimal places.

What is non terminating decimal Class 9?

A non-terminating decimal is a decimal with an infinite number of digits after the decimal point. A non-terminating, recurring decimal is a decimal in which some digits after the decimal point repeat without terminating. A non-terminating, recurring decimal can be expressed as \(\frac{p}{q}\) form.

What is a non-terminating repeating decimal expansion?

Non-Terminating, Non-Repeating Decimal. A non-terminating, non-repeating decimal is a decimal number that continues endlessly, with no group of digits repeating endlessly. Decimals of this type cannot be represented as fractions, and as a result are irrational numbers. Examples.

Is non-terminating non repeating decimal a rational number?

These decimals are decimal fractions that will never end and, after the decimal point, even predictably repeat one or more numbers. Non-terminating repeating decimals are rational numbers, and we can represent them as p/q, where q will not be equal to 0.

Is 0.4 Terminating or non-terminating?

For example, while 0.4444…..is a repeating decimal, 0.4 is a terminating decimal.

What is unscaled value?

Unscaled value – an arbitrary precision integer. Scale – a 32-bit integer representing the number of digits to the right of the decimal point.

What is default precision of BigDecimal in Java?

BigDecimal represents decimal floating-point numbers of arbitrary precision. By default, the precision approximately matches that of IEEE 128-bit floating point numbers (34 decimal digits, HALF_EVEN rounding mode).

What is precision in BigDecimal Java?

BigDecimal. precision() method returns the precision of this BigDecimal. The precision is the number of digits in the unscaled value. The precision of a zero value is 1.

What does non terminating mean?

Definition of nonterminating

: not terminating or ending especially : being a decimal for which there is no place to the right of the decimal point such that all places farther to the right contain the entry 0 ¹/₃ gives the nonterminating decimal . 33333 …

What is a terminating number?

A terminating decimal, true to its name, is a decimal that has an end. For example, 1 / 4 can be expressed as a terminating decimal: It is 0.25. In contrast, 1 / 3 cannot be expressed as a terminating decimal, because it is a recurring decimal, one that goes on forever.

What is a non terminating division?

A non-terminating division is a division that, regardless of how far we carry it out, always has a remainder. Definition: Repeating Decimal. We can see that the pattern in the brace is repeated endlessly. Such a decimal quotient is called a repeating decimal.

ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”

From the Java 11 BigDecimal docs:

When a MathContext object is supplied with a precision setting of 0 (for example, MathContext.UNLIMITED ), arithmetic operations are exact, as are the arithmetic methods which take no MathContext object. (This is the only behavior that was supported in releases prior to 5.)

As a corollary of computing the exact result, the rounding mode setting of a MathContext object with a precision setting of 0 is not used and thus irrelevant. In the case of divide, the exact quotient could have an infinitely long decimal expansion; for example, 1 divided by 3.

ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”

Here’s are some lines mentioned in Java docs :

When a MathContext object is supplied with a precision setting of 0 (for example, MathContext.UNLIMITED), arithmetic operations are exact, as are the arithmetic methods which take no MathContext object. (This is the only behavior that was supported in releases before 5.)

As a corollary of computing the exact result, the rounding mode setting of a MathContext object with a precision setting of 0 is not used and thus irrelevant. In the case of the divide, the exact quotient could have an infinitely long decimal expansion; for example, 1 divided by 3.

If the quotient has a nonterminating decimal expansion and the operation is specified to return an exact result, an ArithmeticException is thrown. Otherwise, the exact result of the division is returned, as done for other operations.

To solve this, you need to try something like this:

a.divide(b, 2, RoundingMode.HALF_UP)

where 2 is precision and RoundingMode.HALF_UP is rounding mode

For more details click here.

How to fix “java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result.”

Overview

Watch Tutorial

Error Messages

package com.jackrutorial; import java.math.BigDecimal; public class Test { public static void main(String[] args) { BigDecimal num1 = new BigDecimal(“10”); BigDecimal num2 = new BigDecimal(“3”); BigDecimal result = num1.divide(num2); System.out.println(result); } }

Exception in thread “main” java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result. at java.math.BigDecimal.divide(BigDecimal.java:1690) at com.jackrutorial.Test.main(Test.java:11)

How to fix those error messages?

Way 1:

BigDecimal result = num1.divide(num2, 2, RoundingMode.HALF_DOWN);

2

RoundingMode.HALF_DOWN

UP, DOWN, CEILING, FLOOR, HALF_DOWN, HALF_EVEN, HALF_UP

UNNECESSARY

package com.jackrutorial; import java.math.BigDecimal; import java.math.RoundingMode; public class Test { public static void main(String[] args) { BigDecimal num1 = new BigDecimal(“10”); BigDecimal num2 = new BigDecimal(“3”); BigDecimal result = num1.divide(num2, 2, RoundingMode.HALF_DOWN); System.out.println(result); } }

3.33

Way 2:

num1.divide(num2, MathContext.DECIMAL128)

package com.jackrutorial; import java.math.BigDecimal; import java.math.RoundingMode; public class Test { public static void main(String[] args) { BigDecimal num1 = new BigDecimal(“10”); BigDecimal num2 = new BigDecimal(“3”); BigDecimal result = num1.divide(num2, MathContext.DECIMAL128); System.out.println(result); } }

3.333333333333333333333333333333333

In this tutorial, we show you how to fix the error messages “java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result.” when we use java.math.BigDecimal to divide two values.The following simple code snippet demonstrates the error messagesWhen the above code is executed, the expected exception is encountered as the following error messagesYou have to modify the source code belowis scale of the BigDecimal quotient to be returned.is Rounding mode to apply. The Rounding Mode Enum constants are, andThe output of the above code isMathContext.DECIMAL32MathContext.DECIMAL64MathContext.DECIMAL128The output of the above code is

Repeating Decimal to Fraction (Conversion Method with Solved Examples)

Repeating Decimal to Fraction

In mathematics, a fraction is a value, which defines the part of a whole. In other words, the fraction is a ratio of two numbers. Whereas, the decimal is a number, whose whole number part and the fractional part is separated by a decimal point. The decimal number can be classified into different types, such as terminating and non-terminating decimals, repeating and non-repeating decimals. While solving many mathematical problems, the conversion of decimal to the fractional value is preferred, as we can easily simplify the fractional values. In this article, we are going to discuss how to convert repeating decimals to fractions in an easy way.

Terminating and Non-Terminating Decimals

A terminating decimal is a decimal, that has an end digit. It is a decimal, which has a finite number of digits(or terms).

Example: 0.15, 0.86, etc.

Non-terminating decimals are the one that does not have an end term. It has an infinite number of terms.

Example: 0.5444444….., 0.1111111….., etc.

Repeating and Non-Repeating Decimals

Repeating decimals are the one, which has a set of terms in decimal to be repeated uniformly.

Example: 0.666666…., 0.123123…., etc.

It is to be noted that the repeated term in decimal is represented by a bar on top of the repeated part. Such as \(\begin{array}{l}0.333333….. = 0.\bar{3}\end{array} \) .

Non-repeating decimals are the one that does have repeated terms.

Note:

\(\begin{array}{l}\sqrt{2} = 1.4142135……\end{array} \) Non-Terminating and non-repeating decimals are said to be an Irrational number . Eg.

The square roots of all the terms (except perfect squares) are irrational numbers.

Non- Terminating and repeating decimals are Rational numbers and can be represented in the form of p/q, where q is not equal to 0.

Repeating Decimals to Fraction Conversion

Let us now learn the conversion of repeating decimals into the fractional form. Now, we are going to discuss the two different cases of the repeating fraction.

Case 1: Fraction of the type \(\begin{array}{l}0.\overline{abcd}\end{array} \)

The formula to convert this type of repeating decimal to a fraction is given by:

\(\begin{array}{l}\overline{abcd}\end{array} \) = Repeated term / Number of 9’s for the repeated term = Repeated term / Number of 9’s for the repeated term

Example 1:

\(\begin{array}{l}0.\overline{7}\end{array} \) Convertto the fractional form.

Solution:

Here, the number of repeated term is 7 only. Thus the number of times 9 to be repeated in the denominator is only once.

\(\begin{array}{l}0.\overline{7} = \frac{7}{9}\end{array} \)

Example 2:

Convert 0.125125125… to the fractional form.

Solution:

\(\begin{array}{l}0.\overline{125}\end{array} \) The decimal 0.125125125….. can be written as

Here, 125 consists of three terms, and it is repeated in a continuous manner. Thus, the number of time 9 to be repeated in the denominator becomes three.

\(\begin{array}{l}0.\overline{125} = \frac{125}{999}\end{array} \)

Case 2: Fraction of the type \(\begin{array}{l}0.ab..\overline{cd}\end{array} \)

The formula to convert this type of repeating decimal to the fraction is given by:

\(\begin{array}{l}0.ab..\overline{cd} =\frac{(ab….cd…..) – ab……}{Number \; of \; time \; 9’s \; the \; repeating \; term \; followed \; by \; the \; number \; of \; times \; 0’s \; for \; the \; non-repeated \; terms }\end{array} \)

Example 3:

\(\begin{array}{l}0.12\overline{34}\end{array} \) Convertto the fractional form.

Solution:

In the given decimal number, 12 is a non-repeated decimal value, and 34 is in the repeating form. Thus denominator becomes 9900.

\(\begin{array}{l}0.12\overline{34} = \frac{1234 – 12 }{9900} = \frac{1222}{9900}\end{array} \)

Example 4:

\(\begin{array}{l}0.00\overline{69}\end{array} \) Convertin the fraction form.

Solution:

In the given decimal number, the number 00 is a non-repeated decimal value, and 69 is in the repeating form. Thus, the denominator becomes 9900.

\(\begin{array}{l}0.00\overline{69} = \frac{0069}{9900} = \frac{69}{9900}\end{array} \)

It is all about the conversion of repeating decimal to the fraction form. To learn more interesting topics in Maths, download BYJU’S – The Learning App and learn with ease.

BigDecimal (Java Platform SE 7 )

BigDecimal

BigDecimal

(unscaledValue × 10-scale)

Immutable, arbitrary-precision signed decimal numbers. Aconsists of an arbitrary precision integerand a 32-bit integer. If zero or positive, the scale is the number of digits to the right of the decimal point. If negative, the unscaled value of the number is multiplied by ten to the power of the negation of the scale. The value of the number represented by theis therefore

The BigDecimal class provides operations for arithmetic, scale manipulation, rounding, comparison, hashing, and format conversion. The toString() method provides a canonical representation of a BigDecimal .

The BigDecimal class gives its user complete control over rounding behavior. If no rounding mode is specified and the exact result cannot be represented, an exception is thrown; otherwise, calculations can be carried out to a chosen precision and rounding mode by supplying an appropriate MathContext object to the operation. In either case, eight rounding modes are provided for the control of rounding. Using the integer fields in this class (such as ROUND_HALF_UP ) to represent rounding mode is largely obsolete; the enumeration values of the RoundingMode enum , (such as RoundingMode.HALF_UP ) should be used instead.

When a MathContext object is supplied with a precision setting of 0 (for example, MathContext.UNLIMITED ), arithmetic operations are exact, as are the arithmetic methods which take no MathContext object. (This is the only behavior that was supported in releases prior to 5.) As a corollary of computing the exact result, the rounding mode setting of a MathContext object with a precision setting of 0 is not used and thus irrelevant. In the case of divide, the exact quotient could have an infinitely long decimal expansion; for example, 1 divided by 3. If the quotient has a nonterminating decimal expansion and the operation is specified to return an exact result, an ArithmeticException is thrown. Otherwise, the exact result of the division is returned, as done for other operations.

When the precision setting is not 0, the rules of BigDecimal arithmetic are broadly compatible with selected modes of operation of the arithmetic defined in ANSI X3.274-1996 and ANSI X3.274-1996/AM 1-2000 (section 7.4). Unlike those standards, BigDecimal includes many rounding modes, which were mandatory for division in BigDecimal releases prior to 5. Any conflicts between these ANSI standards and the BigDecimal specification are resolved in favor of BigDecimal .

Since the same numerical value can have different representations (with different scales), the rules of arithmetic and rounding must specify both the numerical result and the scale used in the result’s representation.

In general the rounding modes and precision setting determine how operations return results with a limited number of digits when the exact result has more digits (perhaps infinitely many in the case of division) than the number of digits returned. First, the total number of digits to return is specified by the MathContext ‘s precision setting; this determines the result’s precision. The digit count starts from the leftmost nonzero digit of the exact result. The rounding mode determines how any discarded trailing digits affect the returned result.

For all arithmetic operators , the operation is carried out as though an exact intermediate result were first calculated and then rounded to the number of digits specified by the precision setting (if necessary), using the selected rounding mode. If the exact result is not returned, some digit positions of the exact result are discarded. When rounding increases the magnitude of the returned result, it is possible for a new digit position to be created by a carry propagating to a leading “9” digit. For example, rounding the value 999.9 to three digits rounding up would be numerically equal to one thousand, represented as 100×101. In such cases, the new “1” is the leading digit position of the returned result.

Besides a logical exact result, each arithmetic operation has a preferred scale for representing a result. The preferred scale for each operation is listed in the table below.

Preferred Scales for Results of Arithmetic Operations Operation Preferred Scale of Result Add max(addend.scale(), augend.scale()) Subtract max(minuend.scale(), subtrahend.scale()) Multiply multiplier.scale() + multiplicand.scale() Divide dividend.scale() – divisor.scale()

1/32

0.03125

These scales are the ones used by the methods which return exact arithmetic results; except that an exact divide may have to use a larger scale since the exact result may have more digits. For example,is

Before rounding, the scale of the logical exact intermediate result is the preferred scale for that operation. If the exact numerical result cannot be represented in precision digits, rounding selects the set of digits to return and the scale of the result is reduced from the scale of the intermediate result to the least scale which can represent the precision digits actually returned. If the exact result can be represented with at most precision digits, the representation of the result with the scale closest to the preferred scale is returned. In particular, an exactly representable quotient may be represented in fewer than precision digits by removing trailing zeros and decreasing the scale. For example, rounding to three digits using the floor rounding mode,

19/100 = 0.19 // integer=19, scale=2

but

21/110 = 0.190 // integer=190, scale=3

Note that for add, subtract, and multiply, the reduction in scale will equal the number of digit positions of the exact result which are discarded. If the rounding causes a carry propagation to create a new high-order digit position, an additional digit of the result is discarded than when no new digit position is created.

Other methods may have slightly different rounding semantics. For example, the result of the pow method using the specified algorithm can occasionally differ from the rounded mathematical result by more than one unit in the last place, one ulp.

Two types of operations are provided for manipulating the scale of a BigDecimal : scaling/rounding operations and decimal point motion operations. Scaling/rounding operations ( setScale and round ) return a BigDecimal whose value is approximately (or exactly) equal to that of the operand, but whose scale or precision is the specified value; that is, they increase or decrease the precision of the stored number with minimal effect on its value. Decimal point motion operations ( movePointLeft and movePointRight ) return a BigDecimal created from the operand by moving the decimal point a specified distance in the specified direction.

For the sake of brevity and clarity, pseudo-code is used throughout the descriptions of BigDecimal methods. The pseudo-code expression (i + j) is shorthand for “a BigDecimal whose value is that of the BigDecimal i added to that of the BigDecimal j .” The pseudo-code expression (i == j) is shorthand for ” true if and only if the BigDecimal i represents the same value as the BigDecimal j .” Other pseudo-code expressions are interpreted similarly. Square brackets are used to represent the particular BigInteger and scale pair defining a BigDecimal value; for example [19, 2] is the BigDecimal numerically equal to 0.19 having a scale of 2.

Note: care should be exercised if BigDecimal objects are used as keys in a SortedMap or elements in a SortedSet since BigDecimal ‘s natural ordering is inconsistent with equals. See Comparable , SortedMap or SortedSet for more information.

ArithmeticException (Non-terminating decimal expansion) occurs in the executable model.

Issue

In executable model, running rules written in MVEL dialect and containing a divide operation of BigDecimal values whose exact quotient has a nonterminating decimal expansion (e.g. 1/3 is 0.3333…, 10/11 is 0.9090…) causes ArithmeticException (Non-terminating decimal expansion).

For example, when running a rule like (*1) by giving a Fact object where value1 property is BigDecimal(“1”) and value2 is BigDecimal(“3”) in non-executable model, I can get a result like (*2) successfully.

(*1)

rule “Rule 1” dialect “mvel” when $fact : Fact( $value1 : value1, $value2 : value2 ) then $fact.result = $value1 / $value2; System.out.println(“Action of Rule 1: ” + $fact); end // value1 and value2 are BigDecimal-type properties of Fact class.

(*2)

Action of Rule 1: com.example.reproducer.Fact[value1=1,value2=3,result=0.3333333333333333333333333333333333]

On the other hand, when running the same thing in executable model, the execution fails due to ArithmeticException like (*3) below.

(*3)

ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result

Java Exceptions Java API

java.lang.ArithmeticException

Cause of the exception

This exception is thrown when the result of a division is recurring (never ending), and we haven’t specified rounding mode/scale. In other words, BigDecimal won’t know how to represent a recurring division result if we haven’t specified to what decimal places the result should be rounded, so it throws this exception.

package com.logicbig.example.arithmeticexception;

import java.math.BigDecimal;

public class ArithmeticExceptionNoExactRepresentable {

public static void main(String… args) {

BigDecimal a = new BigDecimal(5);

BigDecimal b = new BigDecimal(3);

BigDecimal result = a.divide(b);

System.out.println(result);

}

}

Output

java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result.

at java.math.BigDecimal.divide (BigDecimal.java:1723)

at com.logicbig.example.arithmeticexception.ArithmeticExceptionNoExactRepresentable.main (ArithmeticExceptionNoExactRepresentable.java:18)

at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)

at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)

at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke (Method.java:564)

at org.codehaus.mojo.exec.ExecJavaMojo$1.run (ExecJavaMojo.java:282)

at java.lang.Thread.run (Thread.java:832)

5/3 is 1.66666666…..

Non-terminating decimal expansion; no exact representable decimal result.

Non-terminating decimal expansion; no exact representable decimal result.

This error generally occurs in the division operation of BigDecimal, such as:

ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result” – By Microsoft Award MVP – Learn in 30sec

Error Description:

The following code raises the exception shown below

BigDecimal a = new BigDecimal(“1.6”); BigDecimal b = new BigDecimal(“9.2”); a.divide(b) // results in the following exception. click below button to copy the code. By – sql tutorial – team Copy Code

java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result. click below button to copy the code. By – sql tutorial – team Copy Code

Learn sql – sql tutorial – arithmetic-exception – sql examples – sql programs

Solution 1:

When a MathContext object is supplied with a precision setting of 0 (for example, MathContext.UNLIMITED), arithmetic operations are exact, as are the arithmetic methods which take no MathContext object. (This is the only behavior that was supported in releases prior to 5.)

As a corollary of computing the exact result, the rounding mode setting of a MathContext object with a precision setting of 0 is not used and thus irrelevant.

In the case of divide, the exact quotient could have an infinitely long decimal expansion; for example, 1 divided by 3.

If the quotient has a nonterminating decimal expansion and the operation is specified to return an exact result, an ArithmeticException is thrown.

Otherwise, the exact result of the division is returned, as done for other operations.

To fix, you need to do something like this:

a.divide(b, 2, RoundingMode.HALF_UP) where 2 is precision and RoundingMode.HALF_UP is rounding mode click below button to copy the code. By – sql tutorial – team Copy Code

Solution 2:

Because we’re not specifying a precision and a rounding-mode. BigDecimal is complaining that it could use 10, 20, 5000, or infinity decimal places, and it still wouldn’t be able to give us an exact representation of the number. So instead of giving you an incorrect BigDecimal, it just whines at you.

However, if we supply a RoundingMode and a precision, then it will be able to convert (eg. 1.333333333-to-infinity to something like 1.3333 … but we as the programmer need to tell it what precision we’re ‘happy with’.

Solution 3:

We can do

a.divide(b, MathContext.DECIMAL128) click below button to copy the code. By – sql tutorial – team Copy Code

We can choose the number of bits you want either 32,64,128.

Solution 4:

For fixing such an issue

a.divide(b, 2, RoundingMode.HALF_EVEN) click below button to copy the code. By – sql tutorial – team Copy Code

2 is precision. Now problem is resolved.

ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result.

BigDecimal a = new BigDecimal(10); BigDecimal b = new BigDecimal(3); System.out.println(a.divide(b));

An exception occurred when doing the above division operation with BigDecimal

The translation is “Non-terminal decimal expansion; there is no exact representable decimal result”

In fact, the divide method has many overloaded methods, such as the following one

divide (BigDecimal divisor, int scale, int roundingMode)

Where scale is the number of decimal places;

roundingMode is the decimal mode;

ROUND_CEILING

If BigDecimal is positive, do ROUND_UP operation; if it is negative, do ROUND_DOWN operation

ROUND_DOWN

never increase the number before the discarded (ie truncated) decimal

ROUND_FLOOR

If BigDecimal is positive, do ROUND_UP; if it is negative, do ROUND_DOWN

ROUND_HALF_DOWN

If the discarded part> .5, it is ROUND_UP; otherwise, it is ROUND_DOWN

ROUND_HALF_EVEN

If the number on the left of the discarded part is odd, it is ROUND_HALF_UP; if it is an even number, it is ROUND_HALF_DOWN

ROUND_HALF_UP

If the discarded part is >=.5, it is ROUND_UP; Otherwise, use ROUND_DOWN

ROUND_UNNECESSARY

The “pseudo-rounding mode” actually indicates that the required operation must be accurate, so there is no need for rounding.

ROUND_UP

always increases the number before the non-zero number is discarded (ie truncated)

Just bring in the specified parameters

Non-terminating decimal expansion; no exact representable decimal result.

Non-terminating decimal expansion; no exact representable decimal result.

Exception when BigDecimal calls divide() method: non terminating decimal expansion; no exact representable decimal result.

The reason is that there are infinite decimals. At this time, you need to define how many decimals to keep,

decemal1.divide(decimal2, 6, BigDecimal.ROUND_HALF_UP);

키워드에 대한 정보 non terminating decimal expansion no exact representable decimal result

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사람들이 주제에 대해 자주 검색하는 키워드 How to fix \”Non-terminating decimal expansion; no exact representable decimal result.\”

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  • java divide bigdecimal

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