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Re: [DISCUSSION] Add 'complex' datatype, to Value too [message #32804 is a reply to message #32803]

Fri, 10 June 2011 22:52

dolik.rce is currently offline

dolik.rce
Messages: 1791
Registered: August 2008
Location: Czech Republic

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dolik.rce@gmail.com

Hi!

You are right about U++ missing the basic mathematical tools. As a physicist, I have needed the complex numbers in my programs many times. The same goes for many other mathematical tools.

Complex type doesn't really fit into Core, but what about creating a Math package, that would include such tools? It could also use the Eigen package (btw: I think there is already a complex numbers type in eigen, what about just wrapping that one?) and the fftw package you talked about. And possibly others, as they emerge.

About your proposed implementation: It looks quite good, from the quick look it has most of the basic functions I ever needed... I don't think I would really use a Value compatibility, but if you write it, I won't mind I have only one objection: The "complex::i" is not very useful. It is too long to use in equations Smile

Smile

I would prefer something like global constant/macro named just "I". In uppercase to avoid problems with "int i", which is on thousands of places in any program I know Wink

Wink

Best regards,
Honza

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[Message index]

		[DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Fri, 10 June 2011 16:00
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: dolik.rce on Fri, 10 June 2011 22:52
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Sun, 12 June 2011 09:30
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: Tom1 on Sun, 12 June 2011 18:04
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: koldo on Mon, 13 June 2011 08:47
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: Tom1 on Mon, 13 June 2011 11:20
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: dolik.rce on Mon, 13 June 2011 12:15
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: Tom1 on Mon, 13 June 2011 19:24
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Mon, 13 June 2011 20:12
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: dolik.rce on Tue, 14 June 2011 07:44
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Tue, 14 June 2011 08:15
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: dolik.rce on Tue, 14 June 2011 08:45
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Mon, 20 June 2011 09:36
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Mon, 20 June 2011 13:44
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Mon, 20 June 2011 14:24
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Tue, 21 June 2011 19:00
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Wed, 22 June 2011 13:12
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Sat, 25 June 2011 19:48
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Sun, 26 June 2011 09:30
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Sun, 26 June 2011 10:47
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Sun, 26 June 2011 16:05
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Mon, 27 June 2011 18:04
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Tue, 28 June 2011 09:04
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Tue, 28 June 2011 09:16
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Tue, 28 June 2011 09:22
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Tue, 05 July 2011 13:28
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Wed, 06 July 2011 13:17
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Wed, 06 July 2011 14:48
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Wed, 06 July 2011 17:25
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Wed, 06 July 2011 17:50
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Wed, 06 July 2011 19:02
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Wed, 06 July 2011 19:03
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Wed, 06 July 2011 19:31
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Wed, 06 July 2011 21:48
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: unknown user on Wed, 06 July 2011 23:23
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Wed, 06 July 2011 23:38
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: Zbych on Wed, 06 July 2011 22:19
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Thu, 07 July 2011 08:19
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Thu, 07 July 2011 08:23
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Thu, 07 July 2011 17:40
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Mon, 25 July 2011 10:41
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: mirek on Sat, 30 July 2011 10:11
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: kohait00 on Sun, 31 July 2011 15:41
		Re: [DISCUSSION] Add 'complex' datatype, to Value too By: koldo on Mon, 01 August 2011 09:50

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