With the help of sympy.expand_func() method, we can expand special functions in terms of some mathematical identities.
Syntax: expand_func(expression)
Parameter:
expression – It is mathematical expression which is to expanded.Returns: Returns a mathematical expression corresponding to the input in terms of some mathematical identities.
Example #1:
# import sympy from sympy import * x = symbols('x') expr = gamma(x + 3) print("Expression = {}".format(expr)) # Use sympy.expand_func() method expand_expr = expand_func(expr) print("Expanded Expression : {}".format(expand_expr)) |
Output:
Expression = gamma(x + 3) Expanded Expression : x*(x + 1)*(x + 2)*gamma(x)
Example #2:
# import sympy from sympy import * x = symbols('x') expr = binomial(x, 3) print("Expression = {}".format(expr)) # Use sympy.expand_func() method expand_expr = expand_func(expr) print("Expanded Expression : {}".format(expand_expr)) |
Output:
Expression = binomial(x, 3) Expanded Expression : x*(x - 2)*(x - 1)/6
