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TypeScript math object tutorial

TypeScript math object:

A TypeScript Math object provides no. of properties and methods for performing mathematical operations. Math is not a constructor and all the properties and methods of Math are static.

TypeScript Math Object Properties:

PropertyDescription
E \Euler’s constant and the base of natural logarithms, approximately 2.718.
LN2Natural logarithm of 2, approximately 0.693.
LN10Natural logarithm of 10, approximately 2.302.
LOG2EBase 2 logarithm of E, approximately 1.442.
LOG10EBase 10 logarithm of E, approximately 0.434.
PIRatio of the circumference of a circle to its diameter, approximately 3.14159.
SQRT1_2Square root of 1/2; equivalently, 1 over the square root of 2, approximately 0.707.
SQRT2Square root of 2, approximately 1.414.

TypeScript Math Object Methods:

MethodDescription
abs()It returns the absolute value of a number.
acos()It returns the arccosine (in radians) of a number.
asin()It returns the arcsine (in radians) of a number.
atan()It returns the arctangent (in radians) of a number.
atan2()It returns the arctangent of the quotient of its arguments.
ceil()It returns the smallest integer greater than or equal to a number.
cos()It returns the cosine of a number.
exp()It returns EN, where N is the argument, and E is Euler’s constant, the base of the natural logarithm.
floor()It returns the largest integer less than or equal to a number.
log()It returns the natural logarithm (base E) of a number.
max()It returns the largest of zero or more numbers.
min()It returns the smallest of zero or more numbers.
pow()It returns base to the exponent power, that is, base exponent.
random()It returns a pseudo-random number between 0 and 1.
round()It returns the value of a number rounded to the nearest integer.
sin()It returns the sine of a number.
sqrt()It returns the square root of a number.
tan()It returns the tangent of a number.
toSource()It returns the string “Math”.

Example:

function mathTest(num:number):void{
  var squarRoot = Math.sqrt(num);
  console.log("Random Number:  " + num); 
  console.log("Square root:  " + squarRoot); 
}
var num:number = Math.random();
mathTest(num);


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