April 2018
Intermediate to advanced
408 pages
10h 42m
English
In a few cases, we need to optimize the accuracy of a calculation. This can be challenging and may require some fairly advanced math to determine the limits on the accuracy of a given approach.
An interesting thing we can do in Python is replace floating point approximations with a fractions.Fraction value. For some applications, this can create more accurate answers than floating point, because more bits are used for the numerator and denominator than a floating point mantissa.
It's important to use decimal.Decimal values to work with currency. It's a common error to use a float value. When using a float value, additional noise bits are introduced because of the mismatch between Decimal values provided as input and the ...