maloki

I just bumped into a clever little code snippet used to find the inverse square root: float InvSqrt(float x){ float xhalf = 0.5f * x; int i = *(int*)&x; // store floating-point bits in integer i = 0x5f3759d5 – (i >> 1); // initial guess for Newton’s method x = *(float*)&i; // convert new bits [...]

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