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 wat is lattice point and lattice??
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The Bravais lattices
The Bravais lattice are the distinct lattice types which when repeated can fill the whole space. The lattice can therefore be generated by three unit vectors, a_{1}, a_{2} and a_{3} and a set of integers k, l and m so that each lattice point, identified by a vector r, can be obtained from:
r = k a_{1} + l a_{2} + m a_{3}
Lattice: A regular, periodic array of points with a spacing commensurate with the unit cell dimensions. The environment around each point in a lattice is identical. You can generate a lattice by looking at wallpaper and identifying the "repeating part" (the cell) in the wallpaper pattern.
Lattice point :
The crystal structure of a material or the arrangement of atoms within a given type of crystal structure can be described in terms of its unit cell. The unit cell is a small box containing one or more atoms, a spatial arrangement of atoms. These atoms are known as Lattice Point.