Changes

*If order is a matter it is a Permutation.

*If 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 R objects from a set of N objects is <math>\binom{n}{r}=\frac{\fact{n}}{\frac{r}\frac{n-r}}(n  r)=n!/r!(n-r)!, where n!=1*2*3*...*n& r<=n.

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

*This function will give the result is Error when

*This function will give the result is Error when

*1.The N&R are non numeric

*1.The N&R are non numeric