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ieva ashmore


Active since 2016

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Extracting data from a matrix
I have a 50x3 matrix with numerical values. I want to take all the rows that have 2 zeros or more out For example 0 25 ...

7 years ago | 1 answer | 0

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Question


How to evaluate an array of function handles at different points
I have a cell array of 3 functions handles phi={@ (x,y) 1-x-y,@ (x,y) x,@(x,y) y} I need to evaluate it at 4 different p...

7 years ago | 1 answer | 0

1

answer

Question


Crank Nicholson matrix multiplication
I am writing rather simple script for Crank Nicolson, but running into some technical difficulties. I have 3 matrices D 20x20 ...

7 years ago | 0 answers | 0

0

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Question


NxN matrix with 2s on main diagonal
How do I create NxN matrix which has 2s on main diagonal, -1s on diagonal above and below 2s and -1 last element (Nth) in the fi...

7 years ago | 2 answers | 0

2

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Question


Which toolbox do I need to use functions 'banded' and 'diagonal'?
I need to create a matrix NxN with 2 on diagonal, -1 on diagonal above and bellow diagonal of 2s. However then I try to use func...

7 years ago | 1 answer | 0

1

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