WCanon Palmtronic LE-80M
WCounting board
WCut locus
WFractal curve
WInternational Society for Mathematical Sciences
WInverse Symbolic Calculator
WMandelbox
WMap (graph theory)
WLorenzo Mascheroni
WMathematical instrument
WNon-perturbative
WPadovan cuboid spiral
WPhotomath
WProduct order
WRamanujan–Soldner constant
WRestricted root system
WThe spider and the fly problem
WSteinhaus longimeter
WSteklov Institute of Mathematics
WStrange nonchaotic attractor
WToy problem
WTraveling plane wave
WVon Bertalanffy function