User Portlet
| Discussions |
|---|
| I'm a beginner to Mathematica. I had the following code: Solve[-0.45 - 8./(1 + 3 E^(-x/30)) + (80 E^(-x/30) (0.65 - 0.01 x))/(1 + 3 E^(-x/30))^2==0,x] This error appeared: > "Solve::inex: Solve was unable to solve the system with... |