!--error 999 contour: Wrong size for input argument #1: Real vector expected. at line 53 of function contour called by : contour(x,y,z,20) at line 10 of exec file called by :
!--error 999 contour: Wrong size for input argument #1: Real vector expected.at line 53 of function contour called by : contour(x,y,z,20)at line 10 of exec file called by :