I am writing code that needs symbols of which the number is not a priori
known. To do that, I have used code like this:
for ind in range(0,2*maxIter+1):
strSym = 'a' + str(ind) + ' = symbols(\'a_' + str(ind) + '\')'
exec(strSym, globals())
The code is not easy to read, and in Issue 20825 Oscar Benjamin suggested
that I use indexed symbols:
"The solution to this in Python is to use lists or tuples or some other
container rather than raw variables. For example:
x = symbols('x:10')"
Based on that, and
Core — SymPy 1.7.1 documentation
<https://docs.sympy.org/latest/modules/core.html?highlight=symbols#sympy.core.symbol.symbols>
I am trying to use indexed symbols.
a = symbols('a:2*maxIter+1')
The result is
(a0*maxIter+1, a1*maxIter+1)
The problem is that symbols does not support variables after the colon,
defeating the whole purpose of using indexed symbols to begin with.
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