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Results tagged with equation-solving
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user 14295
Questions on the analytic and numerical equation solving functions of Mathematica (Solve, Reduce, NSolve, FindRoot, DSolve, RSolve, etc.).
1
vote
Reduce gives wrong solutions
This behavior is similar to Solve returning "generic" solutions as in
Solve[a x == b, x]
{{x -> b/a}}
which, of course, does not make sense for a=0. However, as the expression provided to Sol …
- 1,401
7
votes
Accepted
How to solve the equation $A \sin x + B \cos x = 0$ for all $x$?
One approach (that works for this simple problem) is to make the substitutions $\cos(x)\rightarrow u \in \mathbb{R}$ and $\sin(x)\rightarrow v \in \mathbb{R}$ with the additional constraint that $u^2+ …
- 1,401
3
votes
Accepted
problem with Solve/findroot and plotting when using NIntegrate
Your code has a few syntax issues as noted in the comments. The following seems to work (if I understand correctly what you are trying to do)
Configure all functions to accept only numerical argument …
- 1,401