Professor,

Senior Scientist,

Ph. D. in E.E., University of Alabama,

IEEE Life member,

Retired

Professional Interests: mathematics, EM waves, Antennas

Submitted

Matrix inverse and determinant

Finding inverse and determinant of matrix by order expansion and condensation

12 months ago | 5 downloads |

Submitted

mtx_d(A,D,d)

Making given matrix altered to have a certain constant for its determinant

2 years ago | 0 downloads |

Submitted

Complex matrix inversion by Real matrix inversion

Calculate the complex matrix inverse by using only real matrix inverse

2 years ago | 2 downloads |

Submitted

Making given matrix singular

Making the given matrix singular by adding a matrix with multiplier.

2 years ago | 1 downloads |

Submitted

inv_det_0(A)

Inverse and determinant of a matrix by order expansion and condensation

2 years ago | 0 downloads |

Question

Find s, such that det(A+s*D) = d.

Given a non-sigular matrix A, an arbitrary matrix D, and a real or complex number d, I want to see any short-cut to find the num...

2 years ago | 2 Answers | 0

Submitted

Polynomials with multiple roots solved

Solving multiple roots polynomial, using simple elementary arithematic operations mostly.

2 years ago | 2 downloads |

Answered

Making a magic square matrix singular

Dear Readers: I have already accepted the expected simple answer from Ahmed A Selman, so I would like to conclude this "Quest...

Making a magic square matrix singular

Dear Readers: I have already accepted the expected simple answer from Ahmed A Selman, so I would like to conclude this "Quest...

3 years ago | 1

Question

Making a magic square matrix singular

We know that any magic square matrix of odd order is not singular. When each element of the matrix is subtracted by the sum-ave...

3 years ago | 4 Answers | 0

Submitted

Polynomial division - derived form covolution

Polynomial division is derived directly from convolution.

4 years ago | 0 downloads |

Question

Output of a vector which excludes the entries of the second vector

Hello, Problem: Given two distinct integer vectors p and q. I'd like to get a new vector r, that is p excluding the entries o...

4 years ago | 2 Answers | 0

Submitted

Inverse and determinant of square matrix

Inverse and determinant of a square matrix are determined using only simple matrix multiplication

4 years ago | 7 downloads |

Submitted

Polynomial division by convolution -- up to finite terms

Division of two polynomials by convolution to get up to K terms.

5 years ago | 2 downloads |

Submitted

Polynomial division by convolution - quotient and reminder

Division of two polynomials to get quotient and reminder using convolution matrix.

5 years ago | 1 downloads |

Submitted

Solving multiple-root polynomials

Find roots and multiplicities of given polynomials using this short compact routine.

6 years ago | 1 downloads |

Submitted

GCD of Polynomials

Find polynomial GCD by "Leading-coefficient Elinimation"

7 years ago | 5 downloads |

Responded

Re: Formating equation for the use of 'roots'

You may try to use my m-file, "polyget.m" (File ID 23900 updated 25 Apr 2009 in File Exchange) to create a polynomial coefficien...

7 years ago | 1791 views

Submitted

Multiple-root polynomial solved by partial fraction expansion

To find poles/residues of the rational function, instead of roots/multiplicities of the polynomial

7 years ago | 1 downloads |

Submitted

Polynomial coefficient vector derived from sub-polynomial factors

A polynomial coefficient vector is derived from several powered polynomial factors.

7 years ago | 0 downloads |

Submitted

Factorization of a polynomial with multiple roots

By a novel effective approach "Monic polynomial subtraction" for computing GCD polynomial.

7 years ago | 0 downloads |

Submitted

Exact GCD of integer polynomials

Exact GCD of a pair of polynomials is obtained by "elimination of leading polynomial coefficient"

8 years ago | 2 downloads |

Submitted

Factoring a multiple-root polynomial

A multiple-root polynomial is factored into lower-degree distict-root polynomials, then solved.

8 years ago | 2 downloads |