DOTNB_C includes the C/C++ Code function files to calculate the mean, variance, pdf, and cdf for the random variable generated from the Difference Of Two Negative Binomial Distributions (DOTNB).

#### Key Functions: 
DOTNB_pdf: Probability Density Function of DOTNB   
DOTNB_cdf: Cumulative Density Function of DOTNB

#### Compilation:
The file can be compiled by GNU compiler (GCC >5.0). 

```g++ DOTNB.cpp -o DOTNB```
