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Shrikanta Mazumder

Shrikanta Mazumder

Backend and Cloud Enthusiast

Most Common Javascript Math functions

2 min readApr 30, 2020

These functions you need in your regular programming life

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Math.abs(): This method returns the absolute (positive) value of a number. It takes one number parameter. If the number’s value is negative, the abs() method converted this number is positive. The positive parameter will remain the same.

Syntax: Math.abs(number)

Ex:

const number = -2;console.log(Math.abs(number));// Result: 2const number2 = (10–100);console.log(Math.abs(number2));// Result: 90const number3 = 40;console.log(Math.abs(number3));// Result: 40 . Remain same.

Math.sin(): This method returns the sine value of a number that calculates the trigonometry sine for the specified expression. It takes number as a parameter. If we pass another datatype it will return NaN.

Syntax: Math.sin(number)

Ex:

const number = 4;console.log(Math.sin(number));// Result: -0.7568024953079282console.log(Math.sin(‘Javascript’));//Result: NaN

Math.cos(): This method returns the cosine value of a number that calculates the trigonometry cosine for the specified expression. It takes a number as a parameter. If we pass another datatype it will return NaN.

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Ex:

const number = 4;console.log(Math.cos(number));// Result: -0.6536436208636119console.log(Math.cos(‘Javascript’));//Result: NaN

Math.exp(): This javascript epx() function used to calculate the power of E. Where E is the Euler’s number approximately equal to 2.71828. It takes a number as an argument. If the argument is not a number it returns NaN.

Syntax: Math.exp(number)

Ex:

const num = 2;console.log(Math.exp(num));// Result: 7.38905609893065console.log(Math.exp(-2));// Result: 0.1353352832366127console.log(Math.exp(‘javascript’));// Result: NaN

Math.log(): This method returns the logarithmic value of a number that calculates the trigonometry logarithmic for the specified expression. It takes a number as a parameter. If we pass another datatype it will return NaN. If the parameter is 0, it returns negative infinity. When a parameter is a negative number or null, it will return NaN

Syntax: Math.log(number)

Ex:

const num = 2;console.log(Math.log(num));// Result: 0.6931471805599453console.log(Math.log(-1));// Result: NaNconsole.log(Math.log(0))// Result: -Infinity

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