//Example 27.2
//Also see Example 27.1
d=0.01*10^-3;//Distance between slits (m)
theta=90;//Maximum diffraction angle (deg)
lambda=633*10^-9;//Wavelength (m)
m=d*sind(theta)/lambda;//Order of interference
printf('Maximum order of interference = %d',m)
//Openstax - College Physics
//Download for free at http://cnx.org/content/col11406/latest