clc
clear all
w=input('Enter the width: ');
if w<=0
disp ('distance must be positive')
break
end
a=input('Enter the unit (I for inch, C for cm) :','s');
if a=='I'
w=w/2.54;
elseif a=='C'
w=w;
else
disp (['Unknown units: ', a])
break
end
l=input('Enter the length: ');
if l<=0
disp ('distance must be positive')
break
end
a=input('Enter the unit (I for inch, C for cm) :','s');
if a=='I'
l=l/2.54;
elseif a=='C'
l=l;
else
disp (['Unknown units: ', a])
break
end
h=input('Enter the height: ');
if h<=0
disp ('distance must be positive')
break
end
a=input('Enter the unit (I for inch, C for cm) :','s');
if a=='I'
h=h/2.54;
elseif a=='C'
h=h;
else
disp (['Unknown units: ', a])
break
end
v=(h*l*w)/3;
vin=v*2.54^3;
disp(['The volume of the pyramid is ',num2str(v), ' cm^3 or ',num2str(vin), ' in^3'])
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