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Exercise "gsl-integ"

  1. (mandatory) Using the GSL integration routine QAGS calculate numerically the intergral 

    ∫01 dx (ln(x)/√x) .

  2. (optional) Using one the [GSL integration routines] implement the [error-function] using its integral representation. Make a plot.

  3. (optional) Using one the GSL integration routines implement the Bessel function (of the first kind) using its [integral representation].