Units undefined inside ( if function).

[KB_10612849]

Hello.

I had an issue using the function (if) as shown below picture, can you help me to solve it?

thank.

[DJNewman]

Because the (σc V σt) boolean comparison returns a 0 or 1 depending on if it's true or not, and that's a unitless thing that won't be compatible with MPa.

You'll want to do if (σc > σmin V σt > σmin) instead.

[Werner_E · Accepted solution]

The comparison of sigma.c and sigma.t returns either 0 (false) or 1 (true) which of course can't be compared to 485 MPa.

You have to write it that way

BTW, you don't have to write the parentheses but I usually add them in such expressions for clarity

But you may also simply write

You may also consider using the if-function instead of the programmed if-statement

And here is yet another way to achieve the same result

[KB_10612849]

Thanks.