Re: machine-size problem again?
- To: mathgroup at smc.vnet.net
- Subject: [mg37509] Re: [mg37474] machine-size problem again?
- From: Vladimir Bondarenko <vvb at mail.strace.net>
- Date: Sat, 2 Nov 2002 03:30:37 -0500 (EST)
- References: <200211010642.BAA11242@smc.vnet.net>
- Reply-to: Vladimir Bondarenko <vvb at mail.strace.net>
- Sender: owner-wri-mathgroup at wolfram.com
Wen-Feng Hsiao wfhsiao at libra.seed.net.tw wrote on Friday, November 01, 2002, 2:42:39 AM :
WFH> I have a trouble in plotting e^x.
WFH> Plot[e^x, {x, 1, 4}]
WFH> It keeps telling me:
WFH> e^x is not a machine-size real number at x = 1.000000125
WFH> e^x is not a machine-size real number at x = 1.1217009747187472
WFH> e^x is not a machine-size real number at x = 1.2544263995781209;
WFH> Even I have added the modifier "Evaluate".
WFH> Plot[Evaluate[e^x], {x, 1, 4}]
WFH> The output is the same.
Please use E (capital) instead of e to denote
the base of natural logarithms. Alternatively,
you may wish to use Exp[z] instead of E^z
Thus,
Plot[{E^x, Exp[5x/4]}, {x, 1, 4}]
works right.
Best wishes,
Vladimir Bondarenko
Mathematical and Production Director
Symbolic Testing Group
Email: vvb at mail.strace.net
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- References:
- machine-size problem again?
- From: wfhsiao@libra.seed.net.tw (Wen-Feng Hsiao)
- machine-size problem again?