SQRT1_2intermediate// Square root of 1/2 (= 1 / Math.SQRT2)
Math.SQRT1_2 // β 0.7071067811...
Math.SQRT1_2 === 1 / Math.SQRT2 // β trueUse Math.SQRT1_2 as a precomputed constant equal to 1/β2, useful in trigonometry and vector normalization.
Math.SQRT1_2 equals Math.sqrt(0.5), the square root of 0.5.
Challenge: Verify that Math.sqrt(0.5) β Math.SQRT1_2.