I want to know code for Norm of any matrix ?

I am taking Numerical methods for engineering. and it says that i have to write a user-defined Matlab function (M file) to calculate the 1 - norm of any matrix and infinity norm matrix.

it does not say anything in the book and i searched all over....

I really need codes for these. thanks for looking my question.

Answer 1

[Matt Fig]

Give this a try:

help norm

After you read the text, you should know how to proceed.

[Jan]

If you implement a matrix norm using the code shown in "help norm", use "sum(X, 1)" instead of "sum(X)" to consider row vectors also.