Description:

• dirtyintegral(f,I) computes an approximation of the integral of f on I.
• The interval must be bound. If the interval contains one of -Inf or +Inf, the result of dirtyintegral is NaN, even if the integral has a meaning.
• The result of this command depends on the global variables prec and points. The method used is the trapezium rule applied at n evenly distributed points in the interval, where n is the value of global variable points.
• This command computes a numerical approximation of the exact value of the integral. It should not be used if safety is critical. In this case, use command integral instead.
• Warning: this command is currently known to be unsatisfactory. If you really need to compute integrals, think of using an other tool or report a feature request to sylvain.chevillard@ens-lyon.org.