input a equation

[kakshaycs]

how to read a equation (input window) and make a function that compute the regarding value of equation on a certain point
example:- f(x)=x^2+4x^3sin(x)+log(x)
read this equation
and calculate the value of equation on a particular point(x).

[AllenWalker16]

import math

x = int(input("enter the value of x: "))
def eqn(x):
a = math.log(x)
b = math.sin(x)
c = x**2
d = 4*x
y = c + d ** 3 * b + a
return y

pass the desired value of x into the parentheses in the expression below

dt = eqn()
print(dt)

[AllenWalker16]

import math

def eqn(x):
a = math.log(x)
b = math.sin(x)
c = x**2
d = 4*x
y = c + d ** 3 * b + a
return y

pass the desired value of x into the parentheses in the expression below

dt = eqn()
print(dt)

[ghost]

example:- f(x)=x^2+4x^3sin(x)+log(x)

import math

def equation(x):
var_1 = math.sin(x)
var_2 = math.log(x)
var_3 =x**2
var_4 = 4*x
y = 0

y =  var_3 +var_4**3*var_1+var_2+y
return  y

print(equation(12)) # by using this it will not print a null value