運算式 8: hyperbolic tangent left parenthesis, "k" "x" , right parenthesistanhkx
8
better fit, less inversible ( solve P3 )
對學生隱藏此資料夾。
9
運算式 10: error function left parenthesis, "X" , right parenthesis tilde hyperbolic tangent left parenthesis, "a" "X" plus "c" "X" cubed , right parenthesiserfX~tanhaX+cX3
10
運算式 11: hyperbolic tangent left parenthesis, "a" "x" plus "c" "x" cubed , right parenthesistanhax+cx3
