//Computation of Minimum Caion-to-Anion Radius Ratio forCo-ordination No. of 3

clear;
clc;

printf("\tExample 12.1\n");

printf("\nFor equilateral triangle after joining centres of the atoms \nAngle = 30\n");

a=30;

ratio=(1-cos(30*%pi/180))/cos(30*%pi/180);

printf("\nCation to anion raio is : %.3f\n",ratio);

//End