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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]# Convert a scientific notation to decimal number, and still keeping the data format as float64

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On 10/18/19 4:35 AM, doganadres at gmail.com wrote: > Here is my question: > > > I am using the numpy.std formula to calculate the standart deviation. However, the result comes as a number in scientific notation. > Therefore I am asking, How to convert a scientific notation to decimal number, and still keep the data format as float64 ? > > Or is there any workaround to get the initial standart deviation result as a decimal number? > > > Here is my code: > > stdev=numpy.std(dataset) > print(stdev) > Result: 4.999999999999449e-05 > > > print(stdev.dtype) > Result: float64 > > > Solutions such as this: > > stdev=format(stdev, '.10f') > converts the data into a string object! which I don't want. > > > Expected result: I am willing to have a result as a decimal number in a float64 format. > > System: (Python 3.7.4 running on Win10) > > > Regards, The number itself isn't in scientific notation or a fixed point number, but is a floating point number that is expressed internally as an integer times a power of 2 (that is the basic representation format for floating point). Scientific notation vs fixed point notation is purely an OUTPUT configuration, not a function on how the number is stored (so in one sense IS more closely linked to a string than the float itself). -- Richard Damon

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