Fix SymPy overflow error in solow lecture #27
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The sympy code was using float values (A=2.0, alpha=0.3, delta=0.5) which caused 'OverflowError: mpz too large to convert to float' during symbolic computation. This fix: - Imports Rational from sympy - Defines A_sym, alpha_sym, delta_sym as Rational values for exact computation - Uses float() when printing s_star for display This matches the fix in the production lecture-python-intro repository.
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Problem
The solow lecture was failing with:
This occurred because the sympy symbolic computation used Python float values (
A=2.0,alpha=0.3,delta=0.5) which caused overflow when SymPy tried to convert the result.Solution
Use
sympy.Rationalfor exact symbolic computation:This matches the fix in the production lecture-python-intro repository.
Changes
Rationalfrom sympyRationalfor exact computationfloat(s_star)when printing for display