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Isktaine
Univ of Bath
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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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Solved
Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...
meer dan 8 jaar ago
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...
meer dan 11 jaar ago | 2 answers | 1
2
answersQuestion
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 ...
bijna 12 jaar ago | 1 answer | 0
1
answerQuestion
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...
bijna 12 jaar ago | 1 answer | 0
1
answerQuestion
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...
bijna 12 jaar ago | 1 answer | 0
1
answerDifferences 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 ...
bijna 12 jaar ago | 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...
bijna 12 jaar ago | 0 answers | 0
0
answershow 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
ongeveer 12 jaar ago | 0
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)...
ongeveer 12 jaar ago | 0
| accepted
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...
ongeveer 12 jaar ago | 1
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...
ongeveer 12 jaar ago | 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...
ongeveer 12 jaar ago | 1 answer | 0
1
answerSolved
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 ...
ongeveer 12 jaar ago
Solved
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...
ongeveer 12 jaar ago
Solved
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...
ongeveer 12 jaar ago
Solved
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 ...
ongeveer 12 jaar ago
Solved
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...
ongeveer 12 jaar ago
Solved
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:...
ongeveer 12 jaar ago