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Python | sympy.logcombine() method

  • Last Updated : 25 Jun, 2019

With the help of sympy.logcombine(), we can combine the log terms in the mathematical expression by using the following properties that are listed below.

Properties :
1) log(x*y)=log(x)+log(y)
2) log(x**n)=nlog(x)

Syntax : sympy.logcombine()

Return : Return the simplified mathematical expression.

Example #1 :
In this example we can see that by using sympy.logcombine(), we are able to combine the log terms in mathematical expression.






# import sympy
from sympy import * 
  
x, y, z = symbols('x y z', positive = True)
gfg_exp = log(x) + log(y)
    
# Using sympy.logcombine() method
gfg_exp = logcombine(gfg_exp)
    
print(gfg_exp)

Output :

log(x*y)

Example #2 :




# import sympy
from sympy import * 
  
x, y, z = symbols('x y z', positive = True)
gfg_exp = 5 * log(x)
    
# Using sympy.logcombine() method
gfg_exp = logcombine(gfg_exp)
    
print(gfg_exp)

Output :

log(x**5)

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