Rank: 697 based on 187 downloads (last 30 days) and 8 files submitted
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Howard Wilson

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Univ of Alabama

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21 Apr 2014 Dynamics of Some Classical System Models Animated response of some classical systems. Author: Howard Wilson mechanical modeling, mathematics, animated response, editors pick, dyn 26 7
  • 4.0
4.0 | 8 ratings
15 Apr 2014 Screenshot Complex Zeros of Functions Complex zeros of a function of z=x+i*y are computed using graphics and Muller's method. Author: Howard Wilson mathematics, complex variables, zeros of nonlinear fu..., special functions, muller method 25 1
15 Apr 2014 Screenshot Curvilinear Coordinates Programs using curvilinear coordinates, and tensor concepts are given. Author: Howard Wilson aerospace, aeronautics, aerodef, curvilinear coordinat..., tensor analysis, symbolic math 29 1
07 Apr 2014 Screenshot Vibration Modes of an Elliptic Membrane Elliptic membrane frequencies and mode shapes are analyzed using Mathieu functions. Author: Howard Wilson mechanical modeling, mathematics, vibration modes, elliptical membrane 12 1
  • 4.5
4.5 | 2 ratings
21 Mar 2014 Screenshot Advanced Mathematics and Mechanics Applications Using MATLAB, 3rd Edition Companion Software (amamhlib) Author: Howard Wilson mechanical engineerin..., mathematics, mechanics, physics 36 11
  • 4.54545
4.5 | 22 ratings
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04 Apr 2013 Dynamics of Some Classical System Models Animated response of some classical systems. Author: Howard Wilson Ashkan

Hi folks,
I'm looking for a code to simulate the elastic wave propagation in an rod or plate or frame,...!
Would you please help me to find such a thing. my email is: ashkan.khalili@gmail.com

21 May 2012 Double Fourier Series Surface Plotting Double Fourier series plots and effects of the number of terms and oscillation smoothing are shown. Author: Howard Wilson Yong-ha

28 Jul 2011 Curvilinear Coordinates Programs using curvilinear coordinates, and tensor concepts are given. Author: Howard Wilson Raptis, Theophanes

How is one supposed to use the curl function in numeric mode? Tried with
syms r t p cs2 real; names=[r t p];
X=[r*sin(t)*cos(p);r*sin(t)*sin(p);r*cos(t)];% Basis of Covariant Vectors

bcov = [[ cos(t), -r*sin(t), 0], [ sin(t), r*cos(t), 0], [ 0, 0, 1]];


% Christoffel Symbols of the Second Kind

cs2 = zeros(3,3,3);

cs2(:,:,1) = [[ 0, 0, 0], [ 0, -r, 0], [ 0, 0, 0]];

cs2(:,:,2) = [[ 0, 1/r, 0], [ 1/r, 0, 0], [ 0, 0, 0]];

cs2(:,:,3) = [[ 0, 0, 0], [ 0, 0, 0], [ 0, 0, 0]];

curls([1, 2 ,3],names,bcovar,cs2,tn)

and gives

>> curltst
??? The following error occurred converting from sym to double:
Error using ==> sym.double at 25
DOUBLE cannot convert the input expression into a double array.
If the input expression contains a symbolic variable, use the VPA function instead.

Error in ==> curltst at 11
cs2(:,:,1) = [[ 0, 0, 0], [ 0, -r, 0], [ 0, 0, 0]];

20 Jun 2011 Complex Zeros of Functions Complex zeros of a function of z=x+i*y are computed using graphics and Muller's method. Author: Howard Wilson Yumei, Chen

Can we use this program to find all the complex roots of a transcendtal equation,and if my equation have two variable quantity?

13 May 2011 Advanced Mathematics and Mechanics Applications Using MATLAB, 3rd Edition Companion Software (amamhlib) Author: Howard Wilson Kamalraj

Appropriate book for Mech and Matlab.

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