JavaScript | Math.imul( ) Function

The Math.imul() function in JavaScript is used to calculate the result of the 32-bit multiplication of the two integers passed as parameters to it. Math.imul() allows for 32-bit integer multiplication with C-like semantics. If the Math.imul() function is used with normal floating type variables in JavaScript then there will be a degrade in performance because of the conversion of floats to ints before multiplication. The overhead of conversion results in a performance degrades if the Math.imul() function is used with normal floating-point variables allowed in JavaScript.

Syntax:

Math.imul(Value1, Value2);

Parameters: This function accepts two parameters Value1 and Value2 which represents two numbers to be multiplied.

Return Value: The Math.imul() function returns the result of the C-like 32-bit multiplication of the given arguments.

Examples:

Input  : Math.imul(3, 4)
Output : 12
     
Input  : Math.imul(-3, -4)
Output : 12

Input  : Math.imul(0, 4)
Output : 0

Below programs illustrate the Math.imul() function in JavaScript:

• Example 1: When two positive numbers are passed as parameters.
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  <script type="text/javascript">    document.write(Math.imul(3, 4)); </script>

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  Output:

  12

• Example 2: When both the numbers(of opposite sign) are passed as parameters.
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  <script type="text/javascript">    document.write(Math.imul(0xfffffffe, 4)); </script>

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  Output:

  -8

• Example 3: When two negative numbers are passed as parameters.
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  <script type="text/javascript">    document.write(Math.imul(-3, -4)); </script>

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  Output:

  12

• Example 4: When one of the parameter passed is a zero.
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  <script type="text/javascript">    document.write(Math.imul(0, 4)); </script>

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  Output:

  0

Supported Browsers: The browsers supported by JavaScript Math.imul( ) function are listed below:

• Google Chrome
• Internet Explorer
• Firefox
• Opera
• Safari

Shubrodeep Banerjee

I am a technology enthusiast who has a keen interest in programming I am pursuing Engineering in Computer Science from GEU, Dehradun I like to unwind by watching movies and English sitcomsI have a keen interest in music