Andrew Horchler

Last seen: 19 jours il y a | Actif depuis 2012

Followers: 1 Following: 0

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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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A résolu

Approximation of Pi
Pi (divided by 4) can be approximated by the following infinite series: pi/4 = 1 - 1/3 + 1/5 - 1/7 + ... For a given number of...

6 mois il y a

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radius of a spherical planet
You just measured its surface area, that is the input.

6 mois il y a

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MATLAB Basic: rounding
Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

6 mois il y a

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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.

10 mois il y a

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

10 mois il y a

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

plus de 4 ans il y a | 3 téléchargements |

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sgolayfilt
Savitzky-Golay differentiation filters

presque 7 ans il y a | 9 téléchargements |

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wrightOmegaq
Complex double-precision evaluation of the Wright omega function

presque 8 ans il y a | 1 téléchargement |

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

presque 8 ans il y a | 2 téléchargements |

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

presque 8 ans il y a | 1 téléchargement |

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rgb2map
Convert RGB colors to indexed colormap colors

presque 8 ans il y a | 1 téléchargement |

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QTWriter
Export QuickTime Movies with Matlab

presque 8 ans il y a | 1 téléchargement |

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notify
Display OS X notification message window from Matlab

presque 8 ans il y a | 1 téléchargement |

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

presque 8 ans il y a | 1 téléchargement |

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polyfitsym
Fit symbolic polynomial to data

presque 8 ans il y a | 1 téléchargement |

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

presque 8 ans il y a | 3 téléchargements |

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

presque 8 ans il y a | 36 téléchargements |

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cdiff
First- and second-order complex step derivative approximation

presque 8 ans il y a | 1 téléchargement |

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

presque 8 ans il y a | 2 téléchargements |

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rigidtform
Optimal rotation and translation between corresponding points

presque 8 ans il y a | 2 téléchargements |

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

presque 9 ans il y a | 5 téléchargements |

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hypergeomq
Fast evaluation of the generalized hypergeometric function

presque 9 ans il y a | 3 téléchargements |

Réponse apportée
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...

environ 10 ans il y a | 2

A résolu

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.

plus de 11 ans il y a

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

plus de 11 ans il y a

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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...

plus de 11 ans il y a

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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 ...

plus de 11 ans il y a

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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...

plus de 11 ans il y a

Question

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 ...

plus de 12 ans il y a | 1 réponse | 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...

presque 13 ans il y a

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Andrew Horchler

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