Re: Mathematica 4.1 How to.....

*To*: mathgroup at smc.vnet.net*Subject*: [mg27269] Re: Mathematica 4.1 How to.....*From*: "Allan Hayes" <hay at haystack.demon.co.uk>*Date*: Fri, 16 Feb 2001 03:58:19 -0500 (EST)*References*: <96asej$6f9@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Exp is the exponential funcition, E is the constant Exp[1] E alao has a special symbol obtained by typing \[ExponentialE] or the sequence Escape ee Escape. The lower case e is just a letter without any meaning. (See the palette found under the menu File>Palettes>CompleteCharacters) Hence Plot[1+E^x, {x,-2,2}] Plot[1+Exp[x], {x,-2,2}] Built-in Mathematica symbols begin with capitals; function application uses [ ] not ( ). But you can use the latter if the expression is in TraditionalForm (see later). Plot[Cos[Pi x], {x,-2,2}] We can get a Greek pi via the sequence Escape p Escape Mathematica in does not understand |x| , where | is the normal bar on the keyboard. We can use: Plot[Abs[x],{x,-2,2}] If you want to see the inputs above in traditional notation then select the cells (click on the bracket) and then use the menu Cell> Convert To> Traditional Form. Then reevaluate them to check that they work. We can type directly in traditional form, but that takes us into typsetting ---- . -- Allan --------------------- Allan Hayes Mathematica Training and Consulting Leicester UK www.haystack.demon.co.uk hay at haystack.demon.co.uk Voice: +44 (0)116 271 4198 Fax: +44 (0)870 164 0565 "Tony" <tony at magic101.freeserve.co.uk> wrote in message news:96asej$6f9 at smc.vnet.net... > I have a trial version of this software. > > Can anyone tell me how I plot a graph such as > > 1 + e to power of x > > I am damned if I can find out how to do this > > Please Please someone help > > Another 2 I am having difficulty with is plotting > > cos(pi x) Pi having its symbolic sign > > and > > |x-1| > > Im probably just a numpty right enough > > Please email to tony at magic101.co.uk > > Thanx > > Tony > > >