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python Programming Glossary: exponentiationDifference between the built-in pow() and math.pow() for floats, in Python? http://stackoverflow.com/questions/10282674/difference-between-the-built-in-pow-and-math-pow-for-floats-in-python implies that the behavior of math.pow is that of the exponentiation operator and therefore of pow x y . Is this officially guaranteed..
Safe way to parse user-supplied mathematical formula in Python http://stackoverflow.com/questions/11951701/safe-way-to-parse-user-supplied-mathematical-formula-in-python expr rpar .setParseAction self.pushUMinus # by defining exponentiation as atom ^ factor ... instead of # atom ^ atom ... we get right..
Why is x**3 slower than x*x*x? [duplicate] http://stackoverflow.com/questions/18453771/why-is-x3-slower-than-xxx As per this answer it's because the implementation of exponentiation has some overhead that multiplication does not. However naive.. x x x x x x x x 1 loops best of 3 212 ms per loop Note the exponentiation time stays more or less constant except for the x 2 case which.. It seems you could exploit this to get faster integer exponentiation... for example In 26 timeit x 16 10 loops best of 3 132 ms per..
Evaluating a mathematical expression in a string http://stackoverflow.com/questions/2371436/evaluating-a-mathematical-expression-in-a-string expr rpar .setParseAction self.pushUMinus # by defining exponentiation as atom ^ factor ... instead of # atom ^ atom ... we get right..
How did Python implement the built-in function pow()? http://stackoverflow.com/questions/5246856/how-did-python-implement-the-built-in-function-pow the implementation can be made more efficient by binary exponentiation and reducing modulo c in each step including the first one i.e...
Encrypting a file with RSA in Python http://stackoverflow.com/questions/6309958/encrypting-a-file-with-rsa-in-python that the encryption operation actually performs a modular exponentiation. The padding I propose ensures that by making the highest order..
Python: why are * and ** faster than / and sqrt()? http://stackoverflow.com/questions/8068019/python-why-are-and-faster-than-and-sqrt expressions involving floating point multiplication and exponentiation but not division. math.sqrt is a different beast altogether.. 1 34 STORE_FAST 3 x4 As you can see multiplication and exponentiation take no time at all since they're done when the code is compiled...
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