Learning Forum

[Mathieu G]

Hi,

I'm trying to change a BC during my calculation using the "Execute Command" function. I'm executing :

(if( < 0 (pick-a-real"/report/v-i/max 8 9, pressure n")) (ti-menu-load-string"/define/b-c/z-t 13 interior"))

It's working fine when tested in the TUI but during the actual calculation I'm seeing this error : 

Error: eval: unbound variable

Error Object: 0 

 

Any idea why it's not working in the execute command promt ?

Thanks

[Rob]

Execute commands trigger every some iterations or once at a set iteration number (or timestep/time) so can you check if it's triggered once and then given an error or failed on the first attempt. I've never tried changing a boundary in this way, it's always been via UDF. 

[Mathieu G]

I copy/paste the same command from a previous model and it worked. My guess is that the issue was coming from the quotation marks

[Rob]

Possibly, Scheme is very particular about syntax, order, what colour your socks are etc.