i am add plots packege.forget to write,sorry.

problem in singularities which in polar coords arises at crossing axix "r",in cartesin -beggining of coordinates.

i think program don't understand the r-component in polar coords becouse meet it like an axis,not a distanse.

This is a first problem.Second is how bypass a singularity.

i am add plots packege.forget to write,sorry.

problem in singularities which in polar coords arises at crossing axix "r",in cartesin -beggining of coordinates.

i think program don't understand the r-component in polar coords becouse meet it like an axis,not a distanse.

This is a first problem.Second is how bypass a singularity.