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mathgnubc

does GNU bc offers a standard math library?

I'm asking if I need to import some kind of library to perform something like that

echo "cos(1)" | bc

and use BLAS and trigonometric functions in general.

Solution

  • Load the math library with bc -l; the cosine function is named c in this library:

    echo "c(1)" | bc -l

    This library only supports sine, cosine, artangent, the natural logarithm, the exponential function, and (strangely enough) the n-th order Bessel function.