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Groups > comp.soft-sys.math.mathematica > #3083
| From | ADL <alberto.dilullo@tiscali.it> |
|---|---|
| Newsgroups | comp.soft-sys.math.mathematica |
| Subject | Re: Is there ToNumber? |
| Date | 2011-06-12 09:07 +0000 |
| Organization | Steven M. Christensen and Associates, Inc and MathTensor, Inc. |
| Message-ID | <it1vl4$b7d$1@smc.vnet.net> (permalink) |
| References | <isnllk$n7b$1@smc.vnet.net> <201106090945.FAA06238@smc.vnet.net> |
On 11 Giu, 12:52, "Dr. Peter Klamser" <klam...@googlemail.com> wrote: > ... ToExpression["1+1"] > > One Hint: If you know a function in Mathematica like "ToString", you > mentioned in your email, look in the help system in the section "see > also", there you find ToExpression["1+1"]. > > Kind regards > > Peter > > Am 11.06.2011 09:59, schrieb Ted Sariyski: > > > Hi, > > Is there a built-in function which returns the numeric value of a string > > (like ToString but inverse). Currently I use mine function toNumber: > > > ch = StringToStream[timeStr]; > > timeNum = Read[ch, Number]; > > Close[ch]; > > > but I suspect there is easier way. > > Thanks in advance, > > --Ted > > -- > Mit freundlichen Gr en > > Uta& Peter Klamser The request is less trivial than ToExpression["1+1"] since, for example, typical number format cannot be read into Mathematica without the rather involved trick reported by Ted Sariyski. As an example, ToExpression["1e3"] ==> e3 ch = StringToStream["1e3"]; timeNum = Read[ch, Number]; Close[ch]; timeNum ==> 1000 I feel this complication as rather unfortunate, unless I am also missing a simpler way to read in numbers. ADL
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Re: How show axes labels with AxesOrigin->{0,0,0} in 3D? Peter Breitfeld <phbrf@t-online.de> - 2011-06-09 09:45 +0000
Is there ToNumber? Ted Sariyski <tsariysk@craft-tech.com> - 2011-06-11 07:59 +0000
Re: Is there ToNumber? Albert Retey <awnl@gmx-topmail.de> - 2011-06-14 11:52 +0000
How to extract a pattern Ted Sariyski <tsariysk@craft-tech.com> - 2011-06-15 11:20 +0000
Re: Is there ToNumber? "Hans Michel" <hmichel@cox.net> - 2011-06-16 08:02 +0000
Re: Is there ToNumber? "Dr. Peter Klamser" <klamser@googlemail.com> - 2011-06-11 10:52 +0000
Re: Is there ToNumber? "Harvey P. Dale" <hpd1@nyu.edu> - 2011-06-12 09:07 +0000
Re: Is there ToNumber? ADL <alberto.dilullo@tiscali.it> - 2011-06-12 09:07 +0000
Re: Is there ToNumber? "Hans Michel" <hmichel@cox.net> - 2011-06-12 23:00 +0000
Re: Is there ToNumber? "Dr. Peter Klamser" <klamser@googlemail.com> - 2011-06-12 23:01 +0000
Re: Is there ToNumber? DrMajorBob <btreat1@austin.rr.com> - 2011-06-15 11:19 +0000
Re: Is there ToNumber? Daniel Lichtblau <danl@wolfram.com> - 2011-06-15 11:19 +0000
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