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Marcus


Last seen: 2 years ago |  Active since 2014

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My differential equation solution doesn't work with dsolve
I'm trying to solve the Lane-Emden equation numerically, and my code for the solution is the following: syms y(x) dy = d...

6 years ago | 1 answer | 0

1

answer

Question


How can I make it so a while loop doesn't stop if one of the elements in a vector going into it fulfills the condition?
My code looks something like this: while(sqrt(x.^2 + y.^2 + z.^2)<1) some conditions which increases the values of x, ...

8 years ago | 1 answer | 0

1

answer

Question


How to get my code to define variables
Hi, I've written a quick piece of code which is the following: function [Delta, theta, theta1, theta1prim, theta2prim, thet...

9 years ago | 2 answers | 0

2

answers

Question


Subscripted assignment dimension mismatch.
Hello, I'm getting the error 'Subscripted assignment dimension mismatch.' for this piece of code: a = -3; b = 3; ...

10 years ago | 1 answer | 0

1

answer

Question


How do I get my loglog plot to chose the correct interval?
Hi, I'm trying to get a loglog plot to show the correct interval. The code is meant to show numerical derivation of sin(x), here...

10 years ago | 0 answers | 0

0

answers

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How to plot a graph of convergence for Newtons method of three variables?
Hi, I have used Newtons method to find three unknown variables from three equations, but now I need to plot the graph to show th...

10 years ago | 1 answer | 0

1

answer

Question


How to get my code for Newtons method for non-linear equationsystems working?
I'm trying to make my code for Newtons method for non-linear equationsystems working. I have three equations and three variables...

10 years ago | 0 answers | 0

0

answers

Question


How to make 'solve' work?
Hello, I have just recently started using Matlab and are still learning the basics. I have tried to solve an equation but the 's...

10 years ago | 1 answer | 0

1

answer