2D field visualisation

Gradient vector ▽f = (∂f/∂x, ∂f/∂y)

A z-dimension of zero is added for plotting

수식 11: "G" Subscript, "r" "a" "d" "i" "e" "n" "t" , Baseline equals left parenthesis, 2 "a" , 2 "b" , 0 , right parenthesis

수식 12:

Vector field representation

수식 14: vector left parenthesis, "P" Subscript, "o" "i" "n" "t" , Baseline , "P" Subscript, "o" "i" "n" "t" , Baseline plus "G" Subscript, "r" "a" "d" "i" "e" "n" "t" , Baseline times "S" Subscript, "i" "z" "e" , Baseline , right parenthesis

수식 15:

Adjust arrow size

수식 17: "S" Subscript, "i" "z" "e" , Baseline equals 0.1 9