Questions tagged [inverse-function]
The inverse-function tag has no usage guidance.
17
questions
0
votes
0answers
47 views
Inverse VS Reduce
I got a solution I want to get inverse but it is not working in Mathematica or Rubi:
...
0
votes
1answer
65 views
Inverse function for a formula
I used this code on Mathematica but it's not showing any result?!
...
0
votes
2answers
76 views
Can we compute higher derivatives of an InverseFunction?
We can define an InverseFunction even when the inverse can't be expressed in closed form.
...
0
votes
1answer
77 views
0
votes
0answers
56 views
Inverse of symbolic hyperbolic function
I have a function
$$u = 1/4*\cosh(x)^2$$
Entered in Mathematica as
1/4*Cosh[x]^2
Inverted using
...
3
votes
1answer
89 views
Why is Log not acting as an inverse of Power function?
I know -8 = Power[-8,1] or Power[-2,3] so when I evaluate:
Log[-8,-8]
I get 1 as expected ...
0
votes
0answers
74 views
Why my code give empty plots? AND When I increase the number of mx , mt my code is running for a long time
In my code, two graphs are not displayed. what is the problem?Also when I increase the number of mx and mt, the code enters the running for a long time.
The regularization problem is described as
$D^{...
1
vote
2answers
53 views
Issue visualizing the image of a vertical line under 1/z using ComplexContourPlot
I am using the function ComplexContourPlot to try to get the image of a vertical line under 1/z however I am getting an error.
In this case I would like to see the image of 1/z for the vertical line ...
5
votes
3answers
98 views
Does Solve make internally assumptions about the domain of the variables?
I recently tried to invert the innocent looking function
$\frac{x}{(1+\sqrt{1-x})^2}$
So I tried the command
Solve[x/(1 + Sqrt[1 - x])^2 == y, x],
which ...
0
votes
1answer
75 views
Possible Bug in InverseFunction
MMA 12.1
For quite some time I have been chasing a bug that I could trace down to the following code. As it is not impossible to fool oneself, I would be glad if somebody could verify this before I ...
1
vote
1answer
77 views
3
votes
4answers
263 views
Numerical Inverse Z Transform?
Is there a way to compute the inverse z-transform in Mathematica numerically? I'm trying to compute the following...
...
0
votes
0answers
78 views
Numerical evaluation of InverseFunction
I am considering the inverse of the function rho[r]. I have used the InverseFunction to find the inverse, given by ry which is a monotonically increasing function of its argument $y$. Now for $1<q&...
0
votes
0answers
63 views
Second-order nonlinear ordinary differential equation with some conditions
I just started to solve second-order nonlinear ordinary differential equation with boundaries condition I wanted to solve by DSolve but I know should be some ...
3
votes
1answer
92 views
2
votes
1answer
61 views
Solving an equation with compounded functions
This is a Mathematica-based question derived directly from this math question.
Given that f[x] is monotonically increasing and ...
4
votes
1answer
218 views
DSolve returning InverseFunction while I believe the answer isn't so complicated
I was trying to solve the following differential equation:
$$A'(y)^2 = -\frac{1}{l^2} e^{-2A(y)} + \frac{1}{L^2}.$$
I know that one possible answer is
$$A(y) = \log\left( \frac{L}{l}\cosh\frac{y}{L}\...
