The Math.SQRT1_2 static data property represents the square root of 1/2, which is approximately 0.707.

Value

𝙼𝚊𝚝𝚑.𝚂𝚀𝚁𝚃𝟷_𝟸=12≈0.707\mathtt{\mi{Math.SQRT1_2}} --> = \sqrt{\frac{1}{2}} --> \approx 0.707

Description

Math.SQRT1_2 is a constant and a more performant equivalent to Math.sqrt(0.5).

Because SQRT1_2 is a static property of Math, you always use it as Math.SQRT1_2, rather than as a property of a Math object you created (Math is not a constructor).

Examples

Using Math.SQRT1_2

The following function returns 1 over the square root of 2:

function getRoot1_2() {
  return Math.SQRT1_2;
}

getRoot1_2(); // 0.7071067811865476

Specifications

Browser compatibility

See also

• Math.pow
• Math.sqrt