!2@      !"#$%&'()*+,-./0123456789:;<=>?(c) Masahiro Sakai 2020GPLmasahiro.sakai@gmail.com experimental non-portableNone >HSVX ?nonlinear-optimization-backpropRun the  CG_DESCENT, optimizer and try to minimize the function.GIt uses reverse mode automatic differentiation to compute the gradient.?nonlinear-optimization-backpropHow should we optimize.nonlinear-optimization-backpropgrad_tol, see  .nonlinear-optimization-backpropInitial guess.nonlinear-optimization-backpropFunction to be minimized.@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~ '&%$#"! 10/.-,+*)(5342876;:9>=<?@? '&%$#"! 5342876;:9>=<10/.-,+*)(      !"#$%&'())*+,-./012234546789:;<=>?@AB@AC@AD@AE@AF@AG@AH@AI@AJ@AK@AL@AM@AN@AO@AP@AQ@AR@AS@AT@AU@AV@AW@AX@AY@AZ@A[@A\@A]@A^@A_@A`@Aa@Ab@Ac@Ad@Ae@fg@fh@fi@fj@fk@lm@ln@lo@lp@lq@rs@rt@ru@rv@rw@rx@ry@rz@r{@r|@r}@r~@r@r@r@r@@@@@@@@@@