ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Tue, 25 Aug 2020 15:50:58 +0200Error in integralhttps://ask.sagemath.org/question/53172/error-in-integral/I've got this error on the second integral. I put the code on wxMaxima and returned sucessfull. On wxMaxima, raise a question "z is positive, negative or zero?", also on sage, but on sage I can't answer that. How can I correct this?
```x,y,z = var("x y z")```
```function = x*e^(-y)```
``` integral(function,y,0,ln(x)).integral(x,0,2*z) ```gabrielromao5Tue, 25 Aug 2020 15:50:58 +0200https://ask.sagemath.org/question/53172/How to integrate in 2D, along the locus of a line.https://ask.sagemath.org/question/10348/how-to-integrate-in-2d-along-the-locus-of-a-line/If I have a 2D continuous and differentiable function (f(x,y)) and a general 2D line L (ax + by + c = 0), how do I evaluate the definite integral of f with respect to x and y along the line L between an arbitrary start and end point that both lie on the line?mmsood99Thu, 11 Jul 2013 19:56:46 +0200https://ask.sagemath.org/question/10348/