Tagged Questions
2
votes
2answers
199 views
Solving set of non-linear simultaneous equations gives PolynomialGCD::lgrexp error - what next?
I'm trying to solve a set of six simultaneous non-linear equations to get a numerical answer using NSolve:
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7
votes
2answers
323 views
Solving/Reducing equations in $\mathbb{Z}/p\mathbb{Z}$
I was trying to find all the numbers $n$ for which $2^n=n\mod 10^k$ using Mathematica.
My first try:
Reduce[2^n == n, n, Modulus -> 100]
However, I receive ...
2
votes
1answer
286 views
FindRoot Infinite expression 1/0 encountered error
I have 1 equation in 1 variable, which when I use Plot, looks like this:
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2
votes
1answer
306 views
Inconsistent initial and boundary conditions
I have a 4th order nonlinear PDE with the following BCs and IC:
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5
votes
2answers
419 views
Error (NSolve::ifun) when using NSolve, I need help interpreting the error
I wrote the following code to observe how the solutions to the equation $(e^{i a})^2 = e^{i b}$ varied as $b$ varied between 0 and $2\pi$
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2
votes
1answer
530 views
Mathematica Can't Evaluate This?
I am trying to find the inverse function of $\frac{\ln{x}}{x^2}$ in Mathematica. I am using the Solve[] function to find the inverse (yes, I know about ...
