Andrew Horchler

Last seen: Today | Con actividad desde 2012

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Contacto

We're going to the Moon! I'm the Chief Research Scientist at Astrobotic heading their Future Missions and Technology team (https://astrobotic.com/technology). My Ph.D. in Mechanical Engineering at Case Western Reserve University was in the area of biologically inspired robotics with particular interests in mechanical design, soft robotics, dynamical systems, computational neuroscience, and numerical simulation. I have over 25 years of experience with Matlab and C.

Programming Languages:
Python, C++, C, Javascript, MATLAB, HTML, CSS, Arduino, Shell
Spoken Languages:
English, French

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Toeplitz Matrix
For a given square matrix of order n-by-n check whether this is a Toeplitz matrix or not. Return true if it is.

7 días hace

Resuelto

Mysterious digits operation (easy)
What is this digit operation? 0 -> 0 1 -> 9 121 -> 9 44 -> 6 15 -> 5 1243 -> 7 ...

7 días hace

Enviada

SDETools
Matlab Toolbox for the Numerical Solution of Stochastic Differential Equations (SDEs)

más de 3 años hace | 19 descargas |

Enviada

sgolayfilt
Savitzky-Golay differentiation filters

alrededor de 6 años hace | 6 descargas |

Enviada

wrightOmegaq
Complex double-precision evaluation of the Wright omega function

alrededor de 7 años hace | 1 descarga |

Enviada

waittext
Display updating line of text or textual waitbar in Matlab Command Window

alrededor de 7 años hace | 1 descarga |

Enviada

quasicrystal
Generate movie, animated GIF, or image of a quasicrystal via sum of plane waves

alrededor de 7 años hace | 2 descargas |

Enviada

rgb2map
Convert RGB colors to indexed colormap colors

alrededor de 7 años hace | 1 descarga |

Enviada

QTWriter
Export QuickTime Movies with Matlab

alrededor de 7 años hace | 1 descarga |

Enviada

notify
Display OS X notification message window from Matlab

alrededor de 7 años hace | 1 descarga |

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int2bin - bin2int
Convert integer datatype to a binary string and back

alrededor de 7 años hace | 4 descargas |

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polyfitsym
Fit symbolic polynomial to data

alrededor de 7 años hace | 2 descargas |

Enviada

char2hex - hex2char
Convert decimal integer string to hexadecimal representation and back

alrededor de 7 años hace | 3 descargas |

Enviada

circfit
Matlab function for least squares fitting of X-Y data to a circle

alrededor de 7 años hace | 36 descargas |

Enviada

cdiff
First- and second-order complex step derivative approximation

alrededor de 7 años hace | 2 descargas |

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DynamixelTools
Matlab Toolbox to control ROBOTIS Dynamixel actuators with the OpenCM9.04 microcontroller

alrededor de 7 años hace | 4 descargas |

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rigidtform
Optimal rotation and translation between corresponding points

alrededor de 7 años hace | 3 descargas |

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Passive-Dynamic-Walking
Simulation and animation of simple passive dynamic walking models

casi 8 años hace | 5 descargas |

Enviada

hypergeomq
Fast evaluation of the generalized hypergeometric function

alrededor de 8 años hace | 3 descargas |

Respondida
Symbolic math- substitute a derivative function with subs()?
A late answer, but maybe this will help others. See <http://stackoverflow.com/a/26998716/2278029 my answer here> on StackOverflo...

más de 9 años hace | 2

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

más de 10 años hace

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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

más de 10 años hace

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Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

más de 10 años hace

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The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

casi 11 años hace

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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...

casi 11 años hace

Pregunta

HARDCOPY slower with more figures open?
GETFRAME is slow. I'm using the HARDCOPY function as a faster alternative (it's still way too slow) in order to capture figures ...

casi 12 años hace | 1 respuesta | 1

1

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Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

alrededor de 12 años hace

Resuelto

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...

alrededor de 12 años hace

Resuelto

Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

alrededor de 12 años hace

Resuelto

Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

alrededor de 12 años hace

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Andrew Horchler

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