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//Example 5_13
clc();
clear;
//To determine the lattice parameter of the material
lamda=0.07107 //units in nm
theta=29.71 //units in degrees
d400=lamda/(2*sin(theta*(%pi/180))) //units in nm
hkl=16
a=d400*sqrt(hkl) //units in nm
printf("Lattice parameter of the material a=%.4fnm",a)
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