Re: How can I make the output value of Interpolation[] preciser?

*To*: mathgroup at smc.vnet.net*Subject*: [mg26597] Re: [mg26578] How can I make the output value of Interpolation[] preciser?*From*: Tomas Garza <tgarza01 at prodigy.net.mx>*Date*: Thu, 11 Jan 2001 10:39:10 -0500 (EST)*References*: <200101090651.BAA00194@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

As so often has been said in the recent past, simply use InputForm[]: In[1]:= tab = {{0, 0}, {0.25, 0.255342}, {0.5, 0.546302}, {0.75, 0.931596}, {1, 1.55741}, {1.25, 3.00957}, {1.5, 14.1014}, {1.75, -5.52038}}; In[2]:= cha = Interpolation[tab]; In[3]:= cha[0.674] Out[3]= 0.795744 In[4]:= InputForm[%] Out[4]//InputForm= 0.795743786607616 By the way, this value does not correspond to what you have below (0.795744032781). I wonder where you obtained this from. Tomas Garza Mexico City ----- Original Message ----- From: "liwen liwen" <gzgear at yahoo.com> To: mathgroup at smc.vnet.net Subject: [mg26597] [mg26578] How can I make the output value of Interpolation[] preciser? > Dear Friends: > How are you! > I want to increase the effective digits > for the output value of Interpolation[] so > that it will be preciser .For example: > > tab={{0,0},{0.25,0.255342},{0.5,0.546302},{0.75,0.931596},{1,1.55741},{1.25, 3.00957}, > {1.5,14.1014},{1.75,-5.52038}}; > Cha=Interpolation[tab]; > In[1]:x=Cha[0.674]; > Out[1]:x=0.795744 > > I want to make the output value be preciser,for > example ,0.795744032781,so I modified the value of > {0.5,0.546302} > to be {0.5,0.5463024567854}and {0.75,0.931596} to be > {0.75,0.93159637289321},but the output value of > Cha[0.674] does not turn to be preciser,it still > keeps 0.795744 ,what can I do? > > Best Regards, > > Liwen E-mail: gzgear at yahoo.com > > __________________________________________________ > Do You Yahoo!? > Yahoo! Photos - Share your holiday photos online! > http://photos.yahoo.com/ >

**References**:**How can I make the output value of Interpolation[] preciser?***From:*liwen liwen <gzgear@yahoo.com>