This pull request enabled iksolver generation with new version of sympy.
I tested 0.7.1 / 0.7.6.1 / 1.12.1.
This is required to upgrade our obsolete version of sympy dependency.
On 0.7.6.1 and 1.12.1, somehow, tj0 appears in the generated code. I forcibly fixed the issue by adding tangent declaration to the generated code, but I don't know the side effect at all.
This pull request enabled iksolver generation with new version of sympy.
I tested 0.7.1 / 0.7.6.1 / 1.12.1.
This is required to upgrade our obsolete version of sympy dependency.
On 0.7.6.1 and 1.12.1, somehow,
tj0
appears in the generated code. I forcibly fixed the issue by adding tangent declaration to the generated code, but I don't know the side effect at all.cc @ntohge @wkentaro @jerasman