A problem with convert,StandardFunctions

 

> 

P := hypergeom([-k,1/2-k],[-2*k],1-z^2);

(1)
> 

convert(P,StandardFunctions);
P1a:=subs(k=1,%);

 

(2)
> 

P1:=subs(k=1,P);

(3)
> 

plot({P1,P1a},z=-1..1,0..2);

 
> 

convert(P,StandardFunctions) assuming k::posint;

(4)
> 

 

 

Download hyp.mw

 

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G A Edgar


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