I have a collection of functions defined using Piecewise from the sympy library in python. They have various different expressions and conditions under which these expressions hold. How can I, for example, add them all together into one piecewise function, which will likely be more finely divided into intervals? With the code below, I have defined 3 piecewise functions:

I am experimenting with piecewise functions with sympy, and have found that it doesn’t like it when I give pairs of expressions and conditions only for certain intervals. For example, when I type the following in an attempt to make the function undefined for x<0:

I have a piecewise-defined function in the sense of the Piecewise class from sympy, and want to be able to manipulate the expressions and conditions within it to form new piecewise functions. For example, how could I change the expressions x**2 and -x in p below? Also I would like to be able to change the conditions.

I have a piecewise-defined function in the sense of the Piecewise class from sympy, and want to be able to manipulate the expressions and conditions within it to form new piecewise functions. For example, how could I change the expressions x**2 and -x in p below? Also I would like to be able to change the conditions.