How we find x^(p/q)

Replies

• 

  Manish Goyal

  let x^(p/q)=y
  take log on both sides
  log x^(p/q)=log(y)
  (p/q)*log(x)=logy
  antilog((p/q)*log(x))=y
  I think you want to create a program for this because such values can easily be calculated using scientific calculator
  Am i right?
• 

  Saandeep Sreerambatla

  You can directly calculate provided the powers are in calculatable range.
  
  If not you can follow the logarithms and log tables.
  
  where you will be able to get the details.
  
  scientific calculator can be used , you can get the values easily.
• 

  Hussanal Faroke

  i want the result without using logarithm!
• 

  Manish Goyal

  You can also calculate it manually
  you can write
  x^(p/q)=(x^(1/q))^p
  say you want to calculate
  27^(2/3)
  then you can get the result.,by writing like this
  (27^(1/3))^2)
  
  Now i hope you know how to calculate
  27^(1/3)
• 

  Hussanal Faroke

  Thanks for all CEans they try to help me, i got an idea with Newton Raphson method, and now i am able to do!