Whenever I invoke \degrees the definition of operator au (angle unit) will be updated. It is easily done by redefining the \degrees with \let and \renewcommand. So far so good. Now I want to create ...
I want to pass a macro to a showgrid key. The macro can be redefined later. Its possible values are top, bottom, false, true. The following MWE produces a blank page. How to fix it? ...
The following screen shot shows how the order of specified key-values affects the output. When using dx=\psPiH,xunit=\psPi. When using xunit=\psPi,dx=\psPiH. Minimal Working Example ...
I use pst-eucl package and I am not so happy with the names defined for its keys (because the names are difficult to remember). I want to rename some of the keys for my own purpose by creating a new ...