reversing set of mathematical equations VI?

[looser]

Hi All..

I want to perform a mathematical process which has symetric parts. For example, perform  A=i+(i+1), when A=B reverse the calculation..
If you have look attached VI that I m trying to construct  it s easier to understand what i mean.  Is there any easy way to reverse a VI that performs a mathematical calculation?
thanks

[GerdW]

Hi looser,

here's my solution 🙂

[looser]

I can not open it with 7.0 😞

[GerdW]

Hi looser,

I already noticed this - please do note your labview version when you upload a vi!

[looser]

worksss.. multi thanks.. .
it ll take sometime for me to understand to understand this clever vi 🙂

[GerdW]

Hi looser,

instead of 'reversing the mathematical function' I just change the increment to positive/negative.
Please keep in mind: NEVER test floating point numbers for equality - use ALWAYS '>=' or '<='! Floating point numbers have only limited precision, so you get rounding errors very fast after repeated adding operations...

[looser]

thanks for advice