Evaluates the sine integral for any real number x.


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Inputs/Outputs

  • cdbl.png x —

    x is any real number.

  • idbl.png Si(x) —

    Si(x) is the result of the calculation of the sine integral for the given value of x.

    • The following equation defines the sine integral.

    where Si is the sine integral.

    The following illustration shows the graph of the sine integral in the interval (0, 15).