I have the following terms
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display2d : false;
t1:(J(r,a+1,b,s+1,t)*(-s+a+1)-J(r,a,b+1,s+1,t)*(a-s))*(t+r+1)
+(s+r+1)*(J(r,a,b+1,s,t+1)*(-t+b+1)-J(r,a+1,b,s,t+1)*(b-t));
t2:(s+r+2)*((-t+b+2)*((J(r,a+1,b+1,s+1,t+1)*(-s+a+1)
-J(r,a,b+2,s+1,t+1)*(a-s))
*(t+r+2)
+(s+r+1)*(J(r,a,b+2,s,t+2)*(-t+b+1)
-J(r,a+1,b+1,s,t+2)*(b-t)))
-(b-t)*((J(r,a+2,b,s+1,t+1)*(-s+a+2)
-J(r,a+1,b+1,s+1,t+1)*(-s+a+1))
*(t+r+2)
+(s+r+1)*(J(r,a+1,b+1,s,t+2)*(b-t)
-J(r,a+2,b,s,t+2)*(-t+b-1))))
+(t+r+2)*((-s+a+2)*((J(r,a+2,b,s+2,t)*(-s+a+1)
-J(r,a+1,b+1,s+2,t)*(a-s))
*(t+r+1)
+(s+r+2)*(J(r,a+1,b+1,s+1,t+1)*(-t+b+1)
-J(r,a+2,b,s+1,t+1)*(b-t)))
-(a-s)*((J(r,a+1,b+1,s+2,t)*(a-s)-J(r,a,b+2,s+2,t)*(-s+a-1))
*(t+r+1)
+(s+r+2)*(J(r,a,b+2,s+1,t+1)*(-t+b+2)
-J(r,a+1,b+1,s+1,t+1)*(-t+b+1))));
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t1 and t2 were generated with a recursion rule.
t1 and t2 are linear combinations of the J-Terms and r,a,b,s,t are parameters.
Is it possible to combine the J-Terms and apply a function,
e.g. factor(), to their coefficients?
Andre