2020-06-09 x / y != x * (1 / y)

I was recently investigating issue onnxruntime/4130 in notebook Discrepencies with ONNX. While looking into a way to solve it, I finally discovered that this is not an easy problem.

• Division algorithm

• Efficient floating-point division with constant integer divisors

• Will the compiler optimize division into multiplication

• Accelerating Correctly Rounded Floating-Point Division When the Divisor is Known in Advance

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