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Isktaine


Univ of Bath

Actif depuis 2012

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Mathematician in disguise as a Mechanical Engineer who dabbles in programming and enjoys daily battles with MATLAB. Studying for a PhD. Self confessed queen of the nerds.

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A résolu


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

presque 9 ans il y a

Question


Multiple anonymous functions combined
Hi, I am trying ultimately to be able to define a new anonymous function from two previously defined functions, and pass this...

presque 12 ans il y a | 2 réponses | 1

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Question


Slowing of program when adding legend.
Hi, I'm plotting 4 functions in one graph and then adding a legend. For some reason adding the legend is really slowing the ...

plus de 12 ans il y a | 1 réponse | 0

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réponse

Question


Subplot without stretching images?
Hi, I have three figures and want to combine them in a long rectangular image so they can be viewed side by side. I've used s...

plus de 12 ans il y a | 1 réponse | 0

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Question


Using structures instead of vectors?
Hi, I'm using ode45 and passing the solutions into another function. Currently I am using the notation [x,A]=ode45('ode...

plus de 12 ans il y a | 1 réponse | 0

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Réponse apportée
Differences between script and function file
A script file will run one line after another, and all the information is available to your workspace in MATLAB. For example if ...

plus de 12 ans il y a | 0

Question


Infinite loop in a interpl?
Hi, While solving an ode with ode45 I use a spline like this: X_0 = interp1(r(:,1),r(:,2),x,'spline'); However somet...

plus de 12 ans il y a | 1 réponse | 0

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how to turn decimal numbers to integers
Assuming your results are stored in A then: fix(A) see http://www.mathworks.co.uk/help/techdoc/ref/fix.html

plus de 12 ans il y a | 0

Réponse apportée
How do I solve a system of equations?
You need to have a function which the ode solvers can act on. [t,y] = ode45('YourODEFunction', [0 50], [a(0) b(0) c(0) d(0)...

plus de 12 ans il y a | 0

| A accepté

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replacing NaN with it previous element
Save this function then use it on K: function K = RemoveNaNs(K) [rows,cols]=size(K); %Works out how many rows and co...

plus de 12 ans il y a | 1

Réponse apportée
Plot several series in the same chart
You can still plot them on the same graph, you just need to make your x vector smaller. For example %Plot your first 100 p...

plus de 12 ans il y a | 0

Question


Dimension mismatch in defining a function for use in ode45
Hi, I'm solving a system of ODEs with ode45. I would like to have extra (non integrated) parameters out of the function as in...

plus de 12 ans il y a | 1 réponse | 0

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A résolu


Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

plus de 12 ans il y a

A résolu


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

plus de 12 ans il y a

A résolu


Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

plus de 12 ans il y a

A résolu


Is my wife right?
Regardless of input, output the string 'yes'.

plus de 12 ans il y a

A résolu


Add two numbers
Given a and b, return the sum a+b in c.

plus de 12 ans il y a

A résolu


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

plus de 12 ans il y a

A résolu


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

plus de 12 ans il y a

A résolu


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

plus de 12 ans il y a