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Re: appending to column [message #61461 is a reply to message #61371]

Wed, 16 July 2008 10:20

Jean H.
Messages: 472
Registered: July 2006

Senior Member

>> IDL> print,a
>> 0 1
>> 2 3
>> 4 311
>> IDL> print,a[0,*] +
>> float(a[1,*])/10^strlen(strcompress(string(a[1,*]),/rem))
>> 0.100000
>> 2.30000
>> 4.31100
>
> Alright, these explanations don't exactly leap to mind for me.
> Which math class was I suppose to learn this in? :-(
>
> Cheers,
> David

division by 10, by 100 by 1000... hum.... too far back in time to
remember when we learn it! :)

1) get the number of digits for the decimal part
2) divide the decimals by 10 power to the number of digits( ->
10,100,1000 etc) so that 0 <= result < 1.0
3) add it to the integer part

Jean

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[Message index]

		Re: appending to column By: David Fanning on Wed, 16 July 2008 09:30
		Re: appending to column By: R.G. Stockwell on Wed, 16 July 2008 09:20
		Re: appending to column By: Spon on Wed, 16 July 2008 09:18
		Re: appending to column By: Michael Galloy on Wed, 16 July 2008 09:17
		Re: appending to column By: David Fanning on Wed, 16 July 2008 10:06
		Re: appending to column By: Jean H. on Wed, 16 July 2008 10:27
		Re: appending to column By: R.G. Stockwell on Wed, 16 July 2008 16:17
		Re: appending to column By: Jean H. on Wed, 16 July 2008 10:20
		Re: appending to column By: d.poreh on Wed, 16 July 2008 09:43

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