Hi there, hopefully somebody can help me with the following problem.

I need to iterate a variable to solve a problem I have. It needs to look something like this:

x := 1
x = 1
...
...
...
x := x + 5
x = 6
...
...
...
x := x - 2
x = 4
...
...
etc

Is it possible to do this is SMath? At the moment it does not allow me to change x once I have declared it as shown in the first line.

I suppose that's because you use "=" button to assign a variable its value; but when a variable is already defined, the "=" button has its usual (in SMath) meaning of displaying its value, instead of assignment.

To assign, use ":" button instead.