With the help of sympy.xreplace() method, we can replace the variable x with any other variable of the functions in the mathematical expression without editing the whole expression by using sympy.xreplace() method.
Syntax :
sympy.xreplace()
Return : Return the replaced value of x in the mathematical expression.
Example #1 :
In this example we can see that by using sympy.xreplace() method, we are able to replace the x variable of mathematical functions in the expression and return the updated expression.
# import sympy from sympy import * x, y = symbols('x y') f = sin(x) + cos(2 * x) # Use sympy.xreplace() method gfg = f.xreplace({2 * x : y}) print(gfg) |
Output :
sin(x) + cos(y)
Example #2 :
# import sympy from sympy import * x, y = symbols('x y') f = log(sin(x)) + tan(cos(2 * x)) # Use sympy.xreplace() method gfg = f.xreplace({ x : 2 * y}) print(gfg) |
Output :
log(sin(2*y)) + tan(cos(4*y))
