#4 Expression class doesn't work as documented

[Anonymous]

Hi. I started using CAMFR for some device analysis. I was constructing a complex multi-layer stack using Python loops and the Expression class when it crashed. Further tests using just three slabs yielded the following:

myStack = Stack( slab1(0) + slab2(h) + slab3(0) ) # Works!

myExpr = Expression( slab1(0) + slab2(h) + slab3(0) )
myStack = Stack( myExpr ) # Works!

myExpr = Expression()
myExpr.add( slab1(0) )
myExpr.add( slab2(h) )
myExpr.add( slab3(0) )
myStack = Stack( myExpr ) # Crashes with an unknown C++ exception

david.forrai@ieee.org

[Peter Bienstman]

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Try with myExpr += slab1(0)

Peter