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Kenneth Johnson


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MATLAB Answers

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Gesendet


Polygon winding number
Compute the winding number of a polygon around a reference point or multiple reference points.

7 Tage vor | 1 Download |

0.0 / 5

Gesendet


Segment crossings
Find segment crossings and proximate points (e.g., for polygon intersection testing).

7 Tage vor | 1 Download |

0.0 / 5

Gesendet


Polygon turning number
Calculate a polygon's turning number.

11 Tage vor | 0 Downloads |

0.0 / 5

Gesendet


Class mpoly (multivariate polynomial)
Multivariate polynomial class with automatic differentiation functionality

3 Monate vor | 3 Downloads |

0.0 / 5

Gesendet


Class DAA, "Derivative-Augmented Array"
Class DAA, "Derivative-Augmented Array", is a general-purpose automatic differentiation engine implemented in MATLAB.

3 Monate vor | 1 Download |

0.0 / 5

Gesendet


Polynomial-to-Pade coefficient conversion
poly2pade converts polynomial coefficients to a Pade approximant's numerator and denominator coefficients.

7 Monate vor | 1 Download |

0.0 / 5

Gesendet


roots_
roots_(c) works with poorly scaled polynomials and does not return zero when c(end) is nonzero.

mehr als ein Jahr vor | 1 Download |

0.0 / 5

Gesendet


Function pagetensorprod.m, paged tensor product
pagetensorprod generalizes tensorprod for paged operation (analogous to pagemtimes).

mehr als ein Jahr vor | 2 Downloads |

0.0 / 5

Gesendet


Padé coefficients
Calculate Padé coefficients corresponding to a truncated Taylor series.

mehr als 3 Jahre vor | 2 Downloads |

0.0 / 5

Gesendet


pageexpm
Paged matrix exponential function

fast 4 Jahre vor | 1 Download |

0.0 / 5

Beantwortet
Why does pagemldivide not give Singular Matrix warnings?
Summary of response from Technical Support: The 'help' for 'pagemldivide' states that the function never warns for ill-condit...

fast 4 Jahre vor | 0

| akzeptiert

Frage


Why does pagemldivide not give Singular Matrix warnings?
The new pagemldivide function in R2022a Prerelease (I think also in Parallel Computing Toolbox) doesn't give any Singular Matrix...

fast 4 Jahre vor | 2 Antworten | 1

2

Antworten

Frage


Why is subscripted assignment so inefficient?
Why is MATLAB's subscripted assignment so abysmally inefficient with more than 2 subscripts? e.g., >> clear, a = []; tic, for j...

fast 4 Jahre vor | 1 Antwort | 3

1

Antwort

Gesendet


Generalized matrix operators
The functions mtimes_.m, mldivide_.m, and mrdivide_.m generalize the corresponding MATLAB functions.

fast 4 Jahre vor | 1 Download |

0.0 / 5

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MATLAB's inefficient copy-on-write implementation
MATLAB's copy-on-write memory management seems to have a serious defect, which I think is the reason behind the abysmal performa...

fast 4 Jahre vor | 2 Antworten | 1

2

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Gesendet


bsxi
Array indexing for binary singleton expansion

fast 4 Jahre vor | 1 Download |

0.0 / 5

Frage


In what way is the new R2021b Editor UI "improved"?
I find the "new and improved" Editor UI in R2021b to be extremely irritating, in no way better than R2021a. How did this get pas...

fast 4 Jahre vor | 4 Antworten | 11

4

Antworten

Gesendet


Linear differential equation solver (lde.m)
solves a linear, first-order, vector differential equation

mehr als 4 Jahre vor | 1 Download |

5.0 / 5
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Frage


Is this a bug in eig?
This issue came up with the roots function (see roots_ on File Exchange), where eig was failing on the companion matrix. Follow...

mehr als 4 Jahre vor | 1 Antwort | 3

1

Antwort

Gesendet


permn
Generate permutations of 1:n and permutation parity.

fast 5 Jahre vor | 1 Download |

0.0 / 5

Gesendet


str2subs, subs2str
Convert a string to/from a subscript struct for use in subsref and subsasgn.

etwa 5 Jahre vor | 1 Download |

5.0 / 5

Gesendet


fminsearch_(funfcn,x0,options,varargin)
Works around a bug (or design defect) in fminsearch.

mehr als 9 Jahre vor | 1 Download |

0.0 / 5

Gesendet


serpind.m
serpentine traversal of an N-dimensional array

mehr als 9 Jahre vor | 1 Download |

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Gesendet


fgridmin.m
global minimization utility

mehr als 9 Jahre vor | 1 Download |

0.0 / 5

Gesendet


Generalized Matrix Exponential
Solves Y'(t) = D(t)*Y(t) for Y(1) with Y(0) = I (identity matrix).

mehr als 10 Jahre vor | 2 Downloads |

0.0 / 5

Gesendet


Scalar
The Scalar base class disallows non-scalar instantiation.

fast 11 Jahre vor | 1 Download |

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Gesendet


Matrix exponential
Matrix exponential algorithm with improved numerical precision

fast 12 Jahre vor | 1 Download |

0.0 / 5

Gesendet


Matrix polynomial
Efficiently evaluate a polynomial with square-matrix argument and scalar coefficients.

fast 12 Jahre vor | 1 Download |

5.0 / 5

Gesendet


matrix power
more efficient than MATLAB's mpower function

etwa 12 Jahre vor | 1 Download |

0.0 / 5

Gesendet


elementwise power
more efficient than MATLAB's power function

etwa 12 Jahre vor | 1 Download |

5.0 / 5

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