Changes

*For n and nc ,when we are giving in to decimals it will change in to integers.  

*For n and nc ,when we are giving in to decimals it will change in to integers.  

*The formula for the number of permutation is:<math>_n P_k= \frac {n!}{(n-k)!}</math>

*The formula for the number of permutation is:<math>_n P_k= \frac {n!}{(n-k)!}</math>

*The Permutation is denoted by _nP_k, P_{n,k}, or P(n,k).This function will give the result as error when  

*The Permutation is denoted by <math> _nP_k, P_{n,k}, or P(n,k) </math>.This function will give the result as error when  

  1.n and nc are nonnumeric.

  1.n and nc are nonnumeric.

  2.Suppose n<=0 or nc<0 or n<nc.

  2.Suppose <math> n\le 0 or nc<0 or n<nc</math>.

==Examples==

==Examples==