How to use PDEtools:-Solve to solve for derivative in equation?

Question:How to use PDEtools:-Solve to solve for derivative in equation?

Posted: nm 12243 Product: Maple

4 hours ago

Maple 2026

Without changing D(x)(ZERO) to one symbol, can one use PDEtools:-Solve to solve for D(x)(ZERO) from one equation?

solve works but PDEtools:-Solve does not for some reason, using same equation.

I do not know if this is known limitation, and if so, where is it documented?

restart;

>	interface(version);

>	T:=D(x)(ZERO)+_C1 = 3/2*ZERO^2; solve(T,{D(x)(ZERO)}); #works OK

${(D(x))(ZERO) = (3/2)*ZERO^2-c__1}$

>	sol:=PDEtools:-Solve(T,D(x)(ZERO)); #why this fail

>	sol:=PDEtools:-Solve(T,{D(x)(ZERO)}); #why this fail

>	#workaround is to rename derivative to one symbol eval(T,D(x)(ZERO)=Z): PDEtools:-Solve(%,Z): eval(%,Z=D(x)(ZERO))

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