Sky Sartorius

Last seen: 6 months ago | Active since 2010

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

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Submitted

Actuator Disc Momentum Theory, with Inverse
Actuator Disc Momentum Theory with Inverse Formulation

9 months ago | 2 downloads |

Submitted

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

2 years ago | 2 downloads |

Solved

Bullseye Matrix
Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

2 years ago

Problem

Create spiral matrices
Create a matrix of a given size with sequential elements spiraling inward. For matrix height m and width n, the output should ...

2 years ago | 0 | 3 solvers

Solved

Return the middle element of an NxN square matrix where N is odd
Let's say you are given an NxN square matrix where N is always going to be an odd number: x = [ 1 2 3 4 5 6 7 8 ...

2 years ago

Solved

ZigZag - 04
Given a matrix, print all its elements in the spiral form (clockwise direction). For example, a=[16 2 3 13 ...

2 years ago

Solved

Wind outward from the center ...
Create an n-by-n matrix with elements ranging from 1 to n^2 in a rectangular spiral pattern. Example if n = 5 : 21 ...

2 years ago

Submitted

Piecewise and blended functions
Create piecewise functions or smoothly blend functions.

3 years ago | 4 downloads |

Answered
Randomly select a number from a column of a stored matrix, stores the respective row
You can use randi to randomly generate the index you need, rowInd = randi(256,1); then use that index to pull out the row from...

3 years ago | 1

| accepted

Submitted

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

3 years ago | 13 downloads |

Submitted

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

3 years ago | 1 download |

Submitted

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

4 years ago | 41 downloads |

Submitted

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

4 years ago | 1 download |

Answered
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, ...

4 years ago | 1

| accepted

Answered
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...

5 years ago | 1

Answered
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...

5 years ago | 5

Answered
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

5 years ago | 0

Answered
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...

5 years ago | 0

Answered
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...

5 years ago | 0

Answered
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...

5 years ago | 0

Answered
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 ...

5 years ago | 0

Submitted

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

5 years ago | 3 downloads |

Submitted

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

5 years ago | 1 download |

Submitted

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

5 years ago | 26 downloads |

Submitted

File Exchange Library Builder
A tool to download your favorite files (or necessary project dependencies) from the File Exchange.

5 years ago | 3 downloads |

Submitted

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

6 years ago | 1 download |

Submitted

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

7 years ago | 1 download |

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...

7 years ago | 0 answers | 0

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answers

Answered
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...

7 years ago | 0

| accepted

Answered
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...

7 years ago | 0

Sky Sartorius

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File Exchange

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