calcp...@aol.com wrote: > In a message dated 1/20/2009 9:37:38 P.M. Eastern Standard Time, > wdjoy...@gmail.com writes: > > (The notation diff(y,t,t) comes from the notation for partial > derivatives, > I think.)
diff(y,t,t) is just a shortcut for diff(diff(y,t),t). If you do diff?, you can see some of the different syntax possibilities. Basically, in the arguments after the function, doing variable, number is the same thing as doing variable, variable, variable, etc., the appropriate number of times. Technically, the diff function does a partial derivative, but of course, if there is only one variable in question, that is the same as the total derivative. Thanks, Jason --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
