Rank: 2534 based on 55 downloads (last 30 days) and 3 files submitted
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Vinesh Rajpaul

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09 Mar 2011 Screenshot NROOTS: complex polynomial root finder NROOTS finds all the roots of real/complex polynomials. Accuracy is better than with ROOTS. Author: Vinesh Rajpaul polynomial, roots, polynomial roots, newtonraphson, newtons method, complex 20 1
  • 5.0
5.0 | 1 rating
22 Jul 2010 findTol Finds elements in an array that approximate a given value, to within a specified error tolerance. Author: Vinesh Rajpaul find, search, tolerance, error, relative error, absolute error 14 2
  • 4.0
4.0 | 1 rating
20 May 2009 Screenshot implot2.m A function to plot implicit functions of two variables. Author: Vinesh Rajpaul graph types, graphics, implicit functions, plotting, plotting function, specialized 21 1
  • 5.0
5.0 | 1 rating
Comments and Ratings by Vinesh Rajpaul View all
Updated File Comments Rating
16 Oct 2010 export_fig Exports figures nicely to a number of vector & bitmap formats. Author: Oliver Woodford

Good documentation, easy to use, and does the job very well! Thanks!

16 Oct 2010 export_fig Exports figures nicely to a number of vector & bitmap formats. Author: Oliver Woodford

09 Jul 2010 SPLINEFIT Fit a spline to noisy data. Author: Jonas Lundgren

Useful...however, support for data containing NaNs would be helpful (spline interpolation using built-in MATLAB functions works fine for data containing NaNs)

09 Jul 2010 SPLINEFIT Fit a spline to noisy data. Author: Jonas Lundgren

09 Jul 2010 findTol Finds elements in an array that approximate a given value, to within a specified error tolerance. Author: Vinesh Rajpaul

Thanks - will implement your suggested improvements.

Comments and Ratings on Vinesh Rajpaul's Files View all
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25 Dec 2012 NROOTS: complex polynomial root finder NROOTS finds all the roots of real/complex polynomials. Accuracy is better than with ROOTS. Author: Vinesh Rajpaul xin, Huang

good work

09 Jul 2010 findTol Finds elements in an array that approximate a given value, to within a specified error tolerance. Author: Vinesh Rajpaul Vinesh Rajpaul

Thanks - will implement your suggested improvements.

23 Jun 2010 findTol Finds elements in an array that approximate a given value, to within a specified error tolerance. Author: Vinesh Rajpaul Simon, Jan

This is a strange method to sort the replied indices:
I = sortrows([I, epsilon(I)], 2) * [1; 0]
This would be more efficient:
[dummy, Index] = sort(epsilon(I));
I = I(Index);
Applying relative tolerances to small values is a general problem. Perhaps it would be nicer to catch Value==0 for "relative" error directly, but at least a div-by-zero warning appears automatically.
I'd expect that Tol=0 performs an exact comparison, although this is nonsense for floating point calculations.
Descriptive help section, no standard H1-line, "See also", author and version, example, number of inputs checked (the MsgID starting with "MATLAB" looks like findTol belongs to a Matlab toolbox). Summary: Useful and usable, small improvements possible.
See also Bruno's ISMEMBERF: http://www.mathworks.com/matlabcentral/fileexchange/23294

20 May 2009 implot2.m A function to plot implicit functions of two variables. Author: Vinesh Rajpaul L3munoz

Really a very good job. It helped me a lot, furthermore with the new application returning a matrix with all the datapoints. The only problem I can find is that of giving just 229 datapoints pairs but sometimes it's enough to get enough information of the curve. Very useful!

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