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# jojo

##### Last seen: 11 mois ago
10 total contributions since 2019

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Question

Error plotting with space and time
Hello, I do not understand how to plot/visualize a solution to some function with different time and space steps. I have the ...

11 mois ago | 1 answer | 0

### 1

Question

Modify matrix for partial plot
How can I modify the for loops to create a bracket-shaped domain? In otherwords, I would like to plot everything and omit the fi...

11 mois ago | 1 answer | 0

### 1

Question

log-log plot explained
How can do we produce a log-log visualization for the following data set? y=[0.6280 0.6554 0.6760 0.6877]; x=[0.27...

environ un an ago | 1 answer | 0

### 1

fsolve to solve 5th order polynomial
This works. fun=@(r) (5/(r^2*9))- ((2)/(9*(6-r)^2))-r; x0 = 10; % some initial point x = fsolve(fun,x0)

plus d'un an ago | 0

| accepted

Question

fsolve to solve 5th order polynomial
I would like to solve the following polynomial numerically for r: I am trying to use fzero as follows: r= (5/(r^2*9))- ((...

plus d'un an ago | 2 answers | 0

### 2

Question

Problem using solve() and root muliplicity.
Why is this not working with the Rosenbrock ? It works with the test function. But how can I get it to work with Rosenb? The ...

plus d'un an ago | 1 answer | 0

### 1

Question

Contour Plot with trace
How can I plot the following data onto a contour instead? close all; clear all; clc; syms x f=@(x) -100.*(x(2)-x...

plus d'un an ago | 0 answers | 0

### 0

Question

unable to perform assignment because the left and right sides have a different number of elements.
I need to update t and dx as shown below, but i keep getting the error: "unable to perform assignment because the left and right...

plus d'un an ago | 1 answer | 0

### 1

Question

Runge Kutta for system of eqs
I would like to approxiamte and plot the following system of equations: { u' = v ; v' = -4*u' - 5 u} using the Runge K...

plus d'un an ago | 1 answer | 0