Re: Stupid simple question about counting derivatives
- To: mathgroup at smc.vnet.net
- Subject: [mg33469] Re: [mg33437] Stupid simple question about counting derivatives
- From: Fernando Rinaldi <fernando.rinaldi at e-technik.uni-ulm.de>
- Date: Fri, 22 Mar 2002 04:06:50 -0500 (EST)
- References: <200203211427.JAA18170@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Jack wrote: > How do I get Mathematica 2.2 to count the derivatives of the simplest > parametric functions, i.e. > > (ax)', where a is the parameter and x is the variable. I want to get: > > a > > (Hey, I said it was stupid). > > D[ax,x] gets me 0, Dt[ax,x] gets me Dt[ax,x] and I haven't figured out > how to use Constants and NonConstants. I'd be grateful for any help as > this simple problem is driving me crazy. HI! don't forget that ax is a new symbol...you mean for sure a*x..... D[a*x,x]=a try.....and never forget..a*x is NOT!!! ax be careful and good work
- References:
- Stupid simple question about counting derivatives
- From: Jack <kielczew@poczta.onet.pl>
- Stupid simple question about counting derivatives