VectorCalc does several different vector calculations. It is comprised of three different forms that display different calculated values. One or two vectors (A and B) may be input into the program. The calculations it performs are: (1) Magnitude of A and/or B (2) Unit vector of A and/or B (3) Angle between A and B (in radians or degrees) (4) Distance between A and B (5) Dot product of A and B (6) Cross product of A and B (7) Sum of A and B (8) Difference between A and B. VectorCalc is designed to handle extremely small or extremely large vectors--from 1.0e-106 to 9.9999999e+106--and anything in between. VectorCalc requires that Mathlib be installed, which is a free PalmOS shared library that provides a full set of double-precision math-library functions for Palm applications to use. Mathlib is included with the distribution of VectorCalc.