Opened 10 years ago
Last modified 7 years ago
#12455 closed enhancement
Make Airy functions symbolical — at Version 3
Reported by: | olazo | Owned by: | olazo |
---|---|---|---|
Priority: | major | Milestone: | sage-6.6 |
Component: | symbolics | Keywords: | Airy functions sd40.5 sd48 |
Cc: | kcrisman, burcin, benjaminfjones, fredrik.johansson, eviatarbach | Merged in: | |
Authors: | Reviewers: | ||
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description (last modified by )
As discussed in sage-support.
Currently sage can evaluate airy functions numerically:
sage: airy_ai(1.4) 0.0820380498076
but it doesn't work symbolically
sage: airy_ai(x) --------------------------------------------------------------------------- TypeError Traceback (most recent call last) /home/oscar/Escritorio/tesis/calculos/<ipython console> in <module>() /home/oscar/sage/sage-4.7.1/local/lib/python2.6/site-packages/sage/functions/special.pyc in airy_ai(x) 621 """ 622 _init() --> 623 return RDF(meval("airy_ai(%s)"%RDF(x))) 624 625 def airy_bi(x): /home/oscar/sage/sage-4.7.1/local/lib/python2.6/site-packages/sage/structure/parent.so in sage.structure.parent.Parent.__call__ (sage/structure/parent.c:7102)() /home/oscar/sage/sage-4.7.1/local/lib/python2.6/site-packages/sage/structure/coerce_maps.so in sage.structure.coerce_maps.NamedConvertMap._call_ (sage/structure/coerce_maps.c:4221)() /home/oscar/sage/sage-4.7.1/local/lib/python2.6/site-packages/sage/symbolic/expression.so in sage.symbolic.expression.Expression._real_double_ (sage/symbolic/expression.cpp:5391)() /home/oscar/sage/sage-4.7.1/local/lib/python2.6/site-packages/sage/symbolic/expression.so in sage.symbolic.expression.Expression._eval_self (sage/symbolic/expression.cpp:4898)() TypeError: Cannot evaluate symbolic expression to a numeric value.
We should make it symbolical for both airy_ai and airy_bi, as well as their derivatives.
Change History (4)
comment:1 Changed 10 years ago by
- Component changed from PLEASE CHANGE to symbolics
- Owner changed from tbd to burcin
comment:2 Changed 10 years ago by
- Owner changed from burcin to olazo
comment:3 Changed 10 years ago by
- Description modified (diff)
Changed 10 years ago by
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