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Is there a standard value for (or method for obtaining) epsilon in Python? I need to compare floating point values and want to compare against the smallest possible difference.
In C++ there's a function provided numeric_limits::epsilon( ) which gives the epsilon value for any given data type. Is there an equivalent in Python?
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If you want the epsilon for Python's float , use sys.
A = E l C ; where A is the absorbance; C is the concentration and l is the cell's width, E (epsilon coefficient) and its unit is mol/dm3.
The Python Math Library comes with the exp() function that we can use to calculate the power of e . For example, ex, which means the exponential of x. The value of e is 2.718281828459045.
To get machine epsilon, use eps = constant('maceps').
The information is available in sys.float_info, which corresponds to float.h in C99.
>>> import sys >>> sys.float_info.epsilon 2.220446049250313e-16 If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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