HELP!!! finding the norm of a function of type |xy| using c

Question

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how to find the norm of a function of type |XY|

C++

function(int n, double **X, double *Y, double *norm)
{
    //write the code to find the norm 
}

where

n = number of iteration
Y = pointer to d
X = double pointer to B
norm = output

Posted 29-Nov-14 21:33pm

Hapisha

Updated 29-Nov-14 21:44pm

v3

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Comments

Zoltán Zörgő 30-Nov-14 3:38am

Do it! I suppose it is your homework, not ours...

George Jonsson 30-Nov-14 3:40am

It would be nice if there were a coding service out there that would write your code for you.

2 solutions

Solution 2

1. look up the formula(s) required to calculate the expected return value from these inputs
2. translate these formulas into a series of C/C++ operations; use local variables to hold temporary values if needed
3. understand and fix any compiler errors and warnings that you may encounter
4. run the program using a debugger and verify at each step of your algorithm if your (temporary) variable(s) hold the expected value(s); if not, find out what is wrong, and why, then fix the program and go back to step 3.

If you have any questions regarding steps 3 and 4, go ahead and ask here. If you have issues with step 2, ask specifically which operation you don't know how to express as a C/C++ command. if you have issues with step 1, we can't help with that, because that is information your tutor should have provided you.

Posted 30-Nov-14 20:56pm

Stefan_Lang

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OriginalGriff · Accepted Answer · 2014-11-29T21:47:00

Solution 1

We do not do your homework: it is set for a reason. It is there so that you think about what you have been told, and try to understand it. It is also there so that your tutor can identify areas where you are weak, and focus more attention on remedial action.

Try it yourself, you may find it is not as difficult as you think!

If you meet a specific problem, then please ask about that and we will do our best to help. But we aren't going to do it all for you!

Posted 29-Nov-14 21:47pm

OriginalGriff

Comments

Hapisha 1-Dec-14 3:30am

thanks. i solved it by myself. and again sorry for asking a silly question.

OriginalGriff 1-Dec-14 4:37am

Good! Well done!
Feel free to ask, but you learn a lot better if you at least try and do it yourself.
:thumbsup: