//Example number 6.4, Page number 6.47

clc;clear;close


// Variable declaration
B=9.27*10**-24;      // bohr magneton(ampere m**2)
a=2.86*10**-10;      // edge(m)
Is=1.76*10**6;       // saturation value of magnetisation(ampere/m)

// Calculation
N=2/a**3;
mew_bar=Is/N;      // number of Bohr magnetons(ampere m**2)
mew_bar=mew_bar/B;      // number of Bohr magnetons(bohr magneon/atom)

// Result
printf("number of Bohr magnetons is : %.2f"+" bohr magneon/atom",(mew_bar))