How do i make print the variable name for a certain variable

Suppose there's this array [a,b,c,d . . . ].I'm trying to write a program that takes the product of two variables a and b and if a*b is in the array then it will print the variable name. For example if a=3 b=2 and c=6 then myfunction(a,b) will return the string'c'

[Adrian Stannard]

A starting point for doing this is:

find(array==a*b)

This returns the index where a*b exists, or else a null matrix. Then the question is how do you want use the result? E.g. to simply return the value it would be: array(find(array==a*b)) Again if the value does not exist then you would get a null matrix which your function could return.

[George]

Why do you want to do this?

How is c defined? e.g., where does it come from?

[Robert Stuckey]

I'm trying to write a program to build a Cayley table, where i can input various named matrices and it will give me a cell array arranged appropriately.

[Guillaume]

"Suppose there's this array [a,b,c,d . . . ]"

There is no array [a,b,c,d...]. There may be an array that is the result of concatenating [a,b,c,d...] but at this point matlab does not know anymore that the array values came from a,b,c and d.

Your whole setup sounds like a bad idea. There is never a good reason for a function to return the name of a variable.

Answer 1

[Gareth Thomas]

myw=who;

now all you need to do is cycle through the values of the variables and return the myw.name(ind)

Answer 2

[Gareth Thomas]

If I understand you correctly you would like to print a the content of a variable.

a = 2;b = 3;c = a*b;disp(c)

[Robert Stuckey]

Actually i want to be able to input 6 and for my program to output the string that's the variable name.