Changes

*If the order is a matter it is a Permutation.

*If the order is a matter it is a Permutation.

*A combination is denoted by nCr or <math>\binom{n}{r}</math>.  

*A combination is denoted by nCr or <math>\binom{n}{r}</math>.  

*A formula for the number of possible combinations of <math>r</math> objects from a set of <math>n</math> objects is <math>\binom{n}{r}=\frac{n!}{r!(n-r)!}</math> where <math>n!=1*2*3*...*n </math> & <math>r \le n</math>.

*A formula for the number of possible combinations of <math>r</math> objects from a set of <math>n</math> objects is:

<math>\binom{n}{r}=\frac{n!}{r!(n-r)!}</math>  

where <math>n!=1*2*3*...*n </math> & <math>r \le n</math>.

*This function will give Error Result when

*This function will give Error Result when

#The <math>n</math> & <math>r</math> are non numeric

#The <math>n</math> & <math>r</math> are non numeric