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# Isktaine

### Univ of Bath

Active since 2012

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

más de 5 años 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...

más de 8 años ago | 2 answers | 1

### 2

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 ...

más de 8 años ago | 1 answer | 0

### 1

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...

casi 9 años ago | 1 answer | 0

### 1

Question

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

casi 9 años ago | 1 answer | 0

### 1

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 ...

casi 9 años 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...

casi 9 años ago | 0 answers | 0

### 0

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

casi 9 años 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)...

casi 9 años 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...

casi 9 años 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...

casi 9 años 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...

casi 9 años ago | 1 answer | 0

### 1

Solved

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 ...

casi 9 años 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...

casi 9 años 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...

casi 9 años ago

Solved

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

casi 9 años ago

Solved

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

casi 9 años 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 ...

casi 9 años 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...

casi 9 años 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:...

casi 9 años ago