using math operation as string in array on an expression

Hi all,

i need to do some math operation on elements in certain order, as:

3+4, 3-4, 3*4, 3/4, 3^4

i thought using a string array

['+','-','*'..]

and somehow to do

3 arr[i] 4

but i just can't make it work! any ideas?

Answer 1

[Mischa Kim]

yonatan, you are on the right track:

 carray = {'3+4','3/4'};
 res    = eval(carray{2})
 res =
   0.750000000000000