// Exa 3.21.12
clc;
clear;
close;
// Given data
N_A = 2 * 10^16;// in atoms/cm^3
N_D = 10^16;// in atoms/cm^3
C_c = N_A-N_D;// C_c stands for Carrier concentration in /cm^3
disp(C_c,"Carrier concentration per cm^3 is");