function fastInverseSqrt(number) { const threehalfs = 1.5; const x2 = number * 0.5; let i = new Float32Array(1); i[0] = number; let y = new Int32Array(i.buffer); y = threehalfs - (x2 * y * y); y = Math.abs(y); y = (y / 1000000000000000000); y = y - ((Math.floor(y) / 10) / y); y = Math.round(y * 100) / 100; return y; }