Answered
Having trouble with while loops problem
Here are some things that are wrong: # You're entering separate numbers x,y for the arithmetic and geometric means (you should ...

15 years ago | 1

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Answered
VERY Nonlinear Data Fitting
If you have the <http://www.mathworks.com/products/statistics/ Statistics Toolbox>, you could use <http://www.mathworks.com/help...

15 years ago | 2

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Answered
"solve" Function
Here is one way: x=sym(input('x = ')) y=sym(input('y = ')) syms z z=solve(z-x-y,z)

15 years ago | 0

Answered
minimise two functions simultaneously
I'm not sure if I understand your problem, so here is my interpretation. Let's say eqs = f(t,K) is your system, where K...

15 years ago | 0

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how to perform symbolic factorial ?
You can use gamma(n+1) to get n factorial. Gamma is a generalization of factorial to real numbers. (edited to apply Walter'...

15 years ago | 0

Answered
tri2grid anyone??
Although |u| is called a function, it's really a vector representing the values of the function on the mesh. |tri2grid| is inten...

15 years ago | 0

Answered
how to generate numbers randomly
You can use <http://www.mathworks.com/help/techdoc/ref/rand.html rand> to generate random numbers.

15 years ago | 0

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Answered
MATLAB one-liners
Here is a real beauty from a comment by <http://www.cise.ufl.edu/~davis/ Tim Davis> on a <http://blogs.mathworks.com/loren/2008/...

15 years ago | 1

Answered
When shall I contact MathWorks' Technical Support and how?
Problems installing a product should be referred to Technical Support.

15 years ago | 2

Answered
Deriving Max with fmincon when contraints differ
If I understand your request, you want the matrix S to have two columns containing the values of Aeq and two columns containing ...

15 years ago | 1

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Answered
Solve a nonlinear system
Is this what you're trying to do? f = @(x) [1/(1+x(1)) - .95; 0.08/(1+x(1)) + 1.08/(1+x(2))^2 - .99]; R = fsolve(f,[0 ...

15 years ago | 0

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Answered
MATLAB one-liners
Here is an interesting way of calculating n rows of Pascal's triangle: round(expm(diag(1:n-1,-1))) Now if we could just ...

15 years ago | 0

Answered
MATLAB one-liners
Turn a structure array S into a cell array with the names of the fields in the first column: C = horzcat(fieldnames(S), squ...

15 years ago | 1

Question

MATLAB one-liners
One of the joys of using MATLAB is that it has a stock of matrix functions like |diff|, |sort|, |all|, and so on, that can be co...

15 years ago | 10 answers | 7

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answers

Answered
Testing for identical numbers in matrix columns
Here is one way: find(~sum(abs(diff(A)))) The idea is that |diff| takes the differences between adjacent terms in a column, ...

15 years ago | 1

Answered
Suppressed output after code error in publish
I have submitted a bug report on this. *EDIT:* The response from Matlab Support is that it's not a bug but inadequate documenta...

15 years ago | 0

Answered
lsqcurvefit
Since the distance between two complex numbers a+i*b and c+i*d is (a-c)^2 + (b-d)^2, you could treat each complex number as a pa...

15 years ago | 0

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Answered
What is the "best" way to Generate a Bernoulli Process?
Interesting question. The number of wasted bits depends on the number of bits you need to define p. If p = 1/sqrt(3), no wasted ...

15 years ago | 0

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warning: badly scaled matrix
This is a lot of code! You could start by finding where the warning is generated. Type dbstop if warning before running ...

15 years ago | 0

Answered
"vertcat" error with array of strings
That commented line is just like having an empty line in the middle of your command (try it!). You could do this: input_fil...

15 years ago | 1

Question

Suppressed output after code error in publish
When I try to publish code that contains an example of a command that returns an error, the output for all code up to and includ...

15 years ago | 2 answers | 0

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answers

Answered
Vectorization of Integral (or quad) to avoid employing a double loop
You could eliminate one loop by using <http://www.mathworks.com/help/techdoc/ref/quadv.html quadv>: x = -2:0.1:2; y = x; [X,Y...

15 years ago | 0

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Answered
Showing x-axis & y-axis
Have you tried axis on ?

15 years ago | 0

Question

Is there more than one way to make a class abstract?
In the <http://www.mathworks.com/help/techdoc/matlab_oop/brgxk22-1.html#brgxk22-2 documentation for abstract classes>, the only ...

15 years ago | 2 answers | 0

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Question

How are method names with a dot in them accessed in classes?
In the tutorial <http://www.mathworks.com/help/techdoc/matlab_oop/brfyl44-1.html Implementing a Set/Get Interface for Properties...

15 years ago | 2 answers | 0

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Answered
Implementing an hgsetget subclass
O.k., this works: classdef unit < hgsetget % This is just a test class for using SET in an HGSETGET subclass. p...

15 years ago | 0

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Answered
Implementing an hgsetget subclass
Here is a simple attempt to get the full functionality: classdef unit < hgsetget % This is just a test class for using SET...

15 years ago | 0

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What matlab easter eggs do you know?
<http://www.eeggs.com/tree/422.html This site> and <http://www.mathfail.com/2010/06/hidden-matlab-fun-easter-eggs.html this site...

15 years ago | 1

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Non-Linear Dynamical Systems - Iteration Help? (Beginer)
I don't want to just do your homework for you, so here are a few hints that will help with the Matlab syntax. First, make a loop...

15 years ago | 0

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Answered
normal random number generator with specified zone
If a uniform distribution will do, you could try rand*2-1 See documentation for <http://www.mathworks.com/help/techdoc/r...

15 years ago | 1