



val[NUMROWS*NUMCOLS]
, so you can use just one pair of brackets.Still I would like to do what I stated above have 3 columns like I have and then change the values for the third column by plugging in values from first or second column into a equation and replacing the values in column 3. 


the reason why I have two variables pi is because i was just testing to see how I can show the double value pi = 3.14 in the array or instead pi just as a char. 
val[1][1] = pi;
or something?


val[NUMROWS*NUMCOLS]
and then making another array that has the results of the equations as the final column but that doesn't seem ideal.





