calculations and variables

[danny8]

Hi,
I've just begun learning objective C and iPhone devleopement. I want to create something in iphone sdk, that has a user input in some numbers in a field and calculates the solution.
(ex: input1 * input2 = solution, or input1 + input2 * input 3 = solution).

I am having trouble finding the right code to make this work for me.
If anyone can be kind enough to help me out with some sample code, I would very much appreciate it!!

thanks, danny

[smithdale87]

Have you tried anything yet?

[smasher]

Do you know how to do this in any other language? The only cocoa-specific stuff would be reading the equation from a text field

NSString * equationString = mytextField.text;

The real work is done by parsing the equation into some kind of a tree structure and evaluating that structure.

Edit: the original question mentioned parsing an equation (or I misread it.)

[LemonMeringue]

create 3 textfields in IB, synthesize three outlets in Xcode, Link the outlets to the textfields, read each value: int valInput1 = [input1.text intValue]; etc