# Use of Salome notebook variables in analytical curve construction

### Use of Salome notebook variables in analytical curve construction

Posted by pierre_j at August 21. 2012Hi,

It doesn't seem possible to use Salome notebook variables in analytical curve construction.

For instance,

- defining variable "Length" in the notebook = 0.05mm

- constructing a curve by selecting 'Interpolation", and entering in Y(t): t*Length

Salome tells me:

"Can't evaluate the expressions, please check them".

When replacing Length by 0.05, it works.

Is it a known limitation (it is not indicated in the end of the Salome notebook help page)?

Bests,

Pierre

### Re: Use of Salome notebook variables in analytical curve construction

Posted by SMESH expert at August 21. 2012Hello Pierre

Yes, it's a limitation. One can enter notebook variables only in spin boxes GUI controls.

Edward

### Re: Use of Salome notebook variables in analytical curve construction

Posted by pierre_j at August 21. 2012
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