[Rd] "integrate" error using a constant function (PR#8348)

joelpf@u.washington.edu joelpf at u.washington.edu
Fri Nov 25 22:38:47 CET 2005

Full_Name: Joel Franklin
Version: 2.2.0
OS: WinXP-Prof
Submission from: (NULL) (

The "integrate" function, when evaluating an integrand function that is constant
(therefore not a function of the integral) cannot be valuated, and instead
throws an error. Instead, the interate function should evaluate the constant
function as a rectangular area with length (upper-lower).

For example:


"Error in integrate(f = integrand, lower = 1, upper = 5) : 
        evaluation of function gave a result of wrong length"

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