chessboard
checker
root mean square
triangle
Greco-Latin square
square
numberwork
pane
bimagic square
alphamagic square
rank
girih tile
squaroid
figurework
multiformula
automorphic number
regular hexahedron
cube
mean square
quadrature
polyare
geomagic square
set theory
squareness
lattice theory
Möbius function
hexomino
broken diagonal
prime reciprocal magic square
square pyramid
rounding error
inverse
crotchet
perfect square
geometrics
multialgebra
Truchet tile
non-hypotenuse number
irreducible
cubic
oblong number
arithmetic operation
onto function
surjective function
file
spherical trigonometry
pandiagonal magic square
Lagrange's interpolation formula
surjection
magic constant