User Portlet
| Discussions |
|---|
| Hi, try Assuming[m \[Element] Integers && m > 0, Integrate[t Sin[2 m t], {t, 0, Pi}]] It also works with $n$, but I usually try to avoid $n$ because there is a function $N$ and sometimes that can be confusing. Cheers, Marco It's magic and... |
| Many thanks, adding "Reals" solves the problem. I don't know Reduce or FindInstance and I will look, thx again for your hints. |
| Coukd you please tell me why thse lines doesn't work ? DSolve[ {y'[x] ==(-12.33 y[x] +400.63) 1000 / (454 10^6 0.001275 1.007), y[0]==5}, y, x] I use Mathematica 9.1. I have too some trouble with the "==", sometimes accepted, other... |