Origin
The central point 
in Polar Coordinates, or the point with all zero coordinates (0, ..., 0) inCartesian Coordinates. In 3-D, the x-Axis, y-Axis, and z-Axis meet at the origin.
- Weyrich's Formula
- W-Function
- Wheat and Chessboard Problem
- Wheel
- Wheel Graph
- Wheel Paradox
- Whewell Equation
- Whipple's Transformation
- Whirl
- Whisker Plot
- Whitehead Double
- Whitehead Link
- Whitehead Manifold
- Whitehead's Theorem
- Whitney-Graustein Theorem
- Whitney-Mikhlin Extension Constants
- Whitney Singularity
- Whitney Sum
- Whitney Umbrella
- Whittaker Differential Equation
- Whittaker Function
- Whole Number
- Width (Partial Order)
- Width (Size)
- Wiedersehen Manifold