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clear
//
//
//
//Variable declaration
a=4.2; //lattice constant(angstrom)
h=3; //intercept on X axis
k=2; //intercept on Y axis
l=1; //intercept on Z-axis
//Calculations
d=a/sqrt(h^2+k^2+l^2); //interplanar spacing(angstrom)
//Result
printf("\n interplanar spacing is %0.2f angstrom",d)
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