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# Alexandra McClernon Ownbey

##### Last seen: 3 månader ago
16 total contributions since 2019

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Question

Map triplets to a matrix
I have multiple structured meshes of a 2-D mesh that I merged together in pointwise (technically making it unstructured). The da...

### 1

Perform AND operations with multiple matrices
This may not be the most efficient way, but it works. I stored everything in a logical and then compared the k-dimension in that...

coonecting line closer to next xy coordinates based on distance
x = pointdbscan.x; y = pointdbscan.y; d = sqrt(x.^2+y.^2); dz = diff(d); xplot{1}(1) = x(1); yplot{1}(1) = y(1); j =...

Question

interrupt a function when it takes too long
Is there a way to interrupt a function that has been taking too long in a for loop and continue to the next iteration? I am call...

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Question

Plot a curve with its derivatives
I have data with the following information and coordinates (not the actual numbers, just an example): X Y dY/...

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How do I create a projectile motion code with inputs that outputs a graph?
Jake, are you entering your angle in degrees or radians? If you want to use degrees, use cosd and sind. You also don't need to ...

Solved

Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

Solved

Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

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...

Question

Find delta 99 of the boundary layer
I am trying to find the location of delta 99 (99 percent of the max velocity) in my velocity profile in a nozzle. I have the cor...

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Solved

Squares in Squares - Concentric Squares
Given a number, n, create an n x n sized matrix with concentric squares of 1s from the outside in. There should be a gap between...

Speed up resizing of app designer gui
For a gui, I always manually define the size a location of all my objects. I find it best to use normalized units. If I have sev...

Plotting 3 function using mesh command
The best way to plot using mesh is to create three 2-D matrices with the same sizes. x = 0:.1:1; y = 0:.5:10; [xq,yq] = me...

How to plot multiple plots using the same colour in a figure
You get the color that is used on the first plot and then use the same color for other plots. % random x and y values x = rand...