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11-12-2010, 10:07 PM #49
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Bonnie
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Re: Looking for a special equation...

Quote:
 Originally Posted by pianoman2011 The point of knowing the answer to this question isn't to be able to figure out how to round numbers... it's more of a "how can I mathematically do that" kinda' thing.
Good for you for wanting to know the "why" and the "how" of something most people take for granted. It is fun to pose a problem, then look for a solution.

BTW, have you seen this site? How a Calculator Does Division

That site also links to a page that discusses many different rounding algorithms: http://www.diycalculator.com/sp-round.shtml

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Last edited by Bonnie; 11-12-2010 at 10:20 PM.

11-13-2010, 02:05 PM #50
 Class 3B Laser Join Date: Jan 2009 Location: Spain, tarragona Posts: 3,637 Rep Power: 218
Hallucynogenyc
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Re: Looking for a special equation...

Quote:
 Originally Posted by BShanahan14rulz lim x->oo (2a^x) = 0 if -0.5<=a<=0.5, oo otherwise lim x->oo (1/1+(2a^x))=1 if -0.5<=a<=0.5, else oo because lim x->oo (1/1) = 1, regardless of x, and limit of 2a^x is 0. ...? I failed Calc 2 twice, and had to drop out... Don't think they even offer calc at the comm. college Limits are all very interesting and everything, but simplifying integrals is where I fell on my face. That, and I couldn't understand my professor, my teaching assistant, or my tutor.
it's not 1/1, its 1/(all the other)
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11-13-2010, 02:12 PM #51
 Class 3B Laser Join Date: Jan 2009 Location: Spain, tarragona Posts: 3,637 Rep Power: 218
Hallucynogenyc
Class 3B Laser

Join Date: Jan 2009
Location: Spain, tarragona
Posts: 3,637
Rep Power: 218
Re: Looking for a special equation...

Quote:
 Originally Posted by BShanahan14rulz lim x->oo (2a^x) = 0 if -0.5<=a<=0.5, oo otherwise lim x->oo (1/1+(2a^x))=1 if -0.5<=a<=0.5, else oo because lim x->oo (1/1) = 1, regardless of x, and limit of 2a^x is 0. ...? I failed Calc 2 twice, and had to drop out... Don't think they even offer calc at the comm. college Limits are all very interesting and everything, but simplifying integrals is where I fell on my face. That, and I couldn't understand my professor, my teaching assistant, or my tutor.
it's not 1/1, its 1/(all the other)
__________________
The difference between an ignorant and a wise is that the wise knows the limits of his knowledge while the ignorant ignores the limits of his ignorance.
Learn how to use Opera and tell me about your experience here!

Wicked Lasers Evolution Pro 130mW ------------------> Review
Rayfoss 150mW waterproof
Rayfoss 200mW focusable torch -----------------------> Review
Dealextreme 5mW true laser pointer
Dealextreme 50mW true laser pointer
Dealextreme 100mW true laser pointer
Laserlands 30mW disco laser --------------------------> Review
5mW pointers (many of them)
DX 200mW Red laser (Dilda) --------------------------> Review
120mW PHR custom build
200mW GGW custom build

Focalprice 7\$ green&bluray laser goggles
Dealextreme tripod and clamp for laser holding -----> Review
DIY 3 motor Spirograph --------------------------------> Review
HLPM-2 laser power meter

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