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# Sky Sartorius

##### Last seen: 3 dagar ago
259 total contributions since 2010

Aerospace engineer
Professional Interests: aircraft design, UAVs, optimization, rotorcraft, education

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Physical Units Toolbox
Enables operations using hundreds of supported physical units of measurement and physical constants.

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Check Matlab code that is supposed to throw errors or warnings.

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Standard Atmosphere Functions
Standard atmosphere gas properties. Support for n-dim inputs, non-standard atmospheres, units, etc.

Submitted

Similar to a character string, but displays itself in the command window as a clickable link.

Plot x^2+y^2=4
There are a few ways to go about this. One that is somewhat agnostic to what the equation is trying to represent (in this case, ...

ungefär ett år ago | 1

| accepted

select random number from an array with probabilities
You can query the cumulative probabilities: S = [4, 3.9, 3.8]; w = [0.5, 0.4, 0.1]; w = w/sum(w); % Make sure probabilites ad...

ungefär ett år ago | 0

get the x-value of a point on curve
This is a table lookup / interpolation problem. For your data, you'll first have to make sure there aren't any repeated y values...

ungefär ett år ago | 4

how do i open a browser in matlab ?
Use uigetfile: https://www.mathworks.com/help/matlab/ref/uigetfile.html Or if you have the toolbox, help uigetimagefile

ungefär ett år ago | 0

Size of a figure that I copy from Matlab to Powerpoint
I find that MS products sometimes have behavior as though they're taking a guess at what the pasted figure size should be. I fin...

ungefär ett år ago | 0

How can I create a 3D plot of data with dots of different color?
Use a scatter plot and CData: n = 100; xData = 1:n; % Placeholder - I assume you have additional information about the data to...

ungefär ett år ago | 0

How to create an object using class name
A quick and dirty approach that will work in many cases is to use eval: function new = createNewObjectOfThisClass(original) ne...

ungefär ett år ago | 0

Converting a row to diagonal matrix
Another guess at the intended meaning of the question could be that the values should be filled along the diagonals (instead of ...

ungefär ett år ago | 0

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MATLAB Style Guide Wiki access and search function
Tips for writing clear code. Search the MATLAB Programming Style Guide Wiki from the command line.

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fig - faster, more intuitive alternative to figure function
Manage figure windows by name and prevent figure window clutter.

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Bisection Method Root Finding
Very simple to use and robust method that takes array inputs, so it even has advantages over fzero.

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File Exchange Library Builder

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Pseudorandom number generation for engineering estimates
Tools for generating pseudorandom numbers, primarily geared toward making engineering estimates.

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Matrix plotting
Plot using single 2 x n (or 3 x n) matrices as inputs instead of x, y, (and z) vectors.

Question

What method do I overload to control display behavior in the workspace window?
When using a subclass of double (for example the ExtendDouble class from the <https://www.mathworks.com/help/matlab/matlab_oop/b...

mer än 3 år ago | 0 answers | 0

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X Y Z coordinates matrix
You can use the |cat| command to 'stack' your three 2d matrices into a single 3d matrix: M = cat(3,x,y,z); This will giv...

mer än 3 år ago | 0

| accepted

Generate Random numbers from a 2 D probability density function
Conceptually, you can generate random numbers for any arbitrary distributions by # Converting the pdf to a cdf. # Generating...

mer än 3 år ago | 0

How to create an Object insertable in a 3D plot?
One approach could be to leverage the plotted object's XData, YData, and ZData, homogeneous coordinates, and the |makehgtform| f...

mer än 3 år ago | 0

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Surface area
Calculate surface area and centroid of a surface or mesh.

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Density altitude calculator
Finds altitude in the atmosphere as a function of air density.

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Show Origin
Sets the limits of axes such that the origin is shown.

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MCD - My change directory
Very quickly switch to a recent or preferred directory - all from the command line.

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Simple propulsion performance estimation
Tools for simple estimation of aircraft propulsion performance.

Reaching the element of an array passed to a function
The first step needs to be to find the indices of the array that correspond to the conditional statement. You can use something ...

ungefär 4 år ago | 0

| accepted

Submitted

is___ - isodd, iseven, isint, isnatural, iswhole
A small set of simple is___ utility functions convenient to have on the path.