Gradient methods - Search for a local minimum
C# algorithm. XY plane. https://github.com/tltrus/MATH-FIND-MIN
C# algorithm. XY plane. https://github.com/tltrus/MATH-FIND-MIN
C# algorithm. XY plane. https://github.com/tltrus/MATH-FIND-MIN
C# algorithm. XY plane. https://github.com/tltrus/MATH-FIND-MIN