formula nodes

[MCHCJWT]

I'm using a Formula Node and my out put is always the number the same

Z= -4.08442104999969e-1*X+2.21688421e1;

the value of X changes

not sure what im doing wrong

thanks

[Dennis_Knutson]

Please attach your code or an image of the block diagram. You can do both by creating a Snippet.

[GerdW]

Hi MCHCJWT,

funny as my solution seems to be ok:

And a formula node works the same as the expression node above:

[Dennis_Knutson]

I also question why you are using a formula node instead of the LabVIEW math functions.

[GerdW]

To follow up Dennis' question:

Both use (more or less) basic LabVIEW functions…

[MCHCJWT]

[GerdW]

Hi,

ok, nice image…

What is wrong? Where do you get wrong unexpected results?

Can you attach your VI with some default data?

[MCHCJWT]

First i would to thank you for you help.  i'm very new to lab view and this was someone elses code that im using

i attached the vi.

Select semi rigid cable type should be 3

lenght 22

[Richard_Ha]

The numbers aren't always the same, but you're not looking enough decimal places, see the attached VI.

[GerdW]

Hi MC,

change your VI to this:

and you will see in the XY graph ReturnLoss is changing with frequency!