Re: Plotting of Sin(x)/x

*To*: mathgroup at smc.vnet.net*Subject*: [mg84170] Re: Plotting of Sin(x)/x*From*: Szabolcs Horvát <szhorvat at gmail.com>*Date*: Wed, 12 Dec 2007 05:13:56 -0500 (EST)*References*: <fjnufu$fdk$1@smc.vnet.net>

G de Graaf wrote: > Hi, > > I am using Mathematica 5.2 to try plot > some Sin[x}/x functions. That does not > work ! It seems that Mathematica cannot > handle this since it does not know that > lim Sin[x}/x (x=0)= 1 ( Hmmmm !!) > > > Anyone knows how to work around this ?? > If you get a warning message during plotting about the expression not having a numerical value at a single point, you can safely ignore it, or turn it off completely (using Off[]), or define your own sinc function as sinc[x_] = Sin[x]/x sinc[0] = 1 to avoid the problem. Mathematica does not try to compute limits when plotting, it only uses numerical computations. -- Szabolcs