Navigation Problem
A problem in the Calculus of Variations. Let a vessel traveling at constant speed 
navigate on a bodyof water having surface velocity
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The navigation problem asks for the course which travels between two points in minimal time.
References
Sagan, H. Introduction to the Calculus of Variations. New York: Dover, pp. 226-228, 1992.
- Repfigit Number
- Replicate
- Representation
- Reptend Prime
- Rep-Tile
- Repunit
- Residual
- Residual vs. Predictor Plot
- Residue Class
- Residue (Complex Analysis)
- Residue (Congruence)
- Residue Index
- Residue Theorem (Complex Analysis)
- Residue Theorem (Group)
- Resolution
- Resolution Class
- Resolution Modulus
- Resolvable
- Resolving Tree
- Resonance Overlap
- Resonance Overlap Method
- R-Estimate
- Restricted Divisor Function
- Restricted Growth Function
- Restricted Growth String