Comments for The Number Warrior
https://numberwarrior.wordpress.com
Assorted posts on mathematics and educationSat, 15 Oct 2016 00:38:14 +0000hourly1http://wordpress.com/Comment on A Puzzle Equivalent to Factoring a Quadratic by Wendy Menard
https://numberwarrior.wordpress.com/2009/01/07/a-puzzle-equivalent-to-factoring-a-quadratic/#comment-17111
Sat, 15 Oct 2016 00:38:14 +0000http://numberwarrior.wordpress.com/?p=226#comment-17111Did you ever get an answer key? My students were stumped by the 8/40 one as well.
]]>Comment on Negative times negative by Rupace
https://numberwarrior.wordpress.com/2009/09/29/negative-times-negative/#comment-17042
Sat, 03 Sep 2016 18:35:25 +0000http://numberwarrior.wordpress.com/?p=989#comment-17042Sin(-A)=-Sin(A)
Sin(90)=1
-Sin(90)=-1
-1*-1=-Sin(90)*-Sin(90)
-1*-1=Sin(-90)*Sin(-90)
-1*-1=Sin^2(-90)
-1*-1=1-Cos^2(-90)
Since Cos(-90)=0==>Cos^2(-90)=0
-1*-1=1

Proved🙂

]]>Comment on Is “one, two, many” a myth? by Episode 256: Numbers – Talk the Talk
https://numberwarrior.wordpress.com/2010/07/30/is-one-two-many-a-myth/#comment-17019
Tue, 09 Aug 2016 00:16:17 +0000http://numberwarrior.wordpress.com/?p=1726#comment-17019[…] Is “one, two, many” a myth? https://numberwarrior.wordpress.com/2010/07/30/is-one-two-many-a-myth/ […]
]]>Comment on Is “one, two, many” a myth? by Dissipative Functions and Reaction-Diffusion Equations | Empathic Dynamics
https://numberwarrior.wordpress.com/2010/07/30/is-one-two-many-a-myth/#comment-16989
Mon, 18 Jul 2016 19:27:42 +0000http://numberwarrior.wordpress.com/?p=1726#comment-16989[…] As a brief aside, the dimension of a dynamical systems provides some hard limits on the possible dynamics. As we’ve seen, one dimensional dynamics is more-or-less trivial (at least if we consider only the large time asymptotics). The Poincaré –Bendixson Theorem guarantees that dynamical systems of the form (1) in the plane (e.g. ) can only have steady states and oscillations in terms of bounded solutions. Unbounded solutions, or solutions that blow up in finite time, can of course exist but these are not interesting in terms of asymptotic dynamics. Three-dimensional systems (equivalently, two-dimensional nonautonomous systems) can exhibit chaotic behaviour in addition to numerous other phenomena not possible in planar dynamics. For this reason, dynamics is often broken into the trivial (1D), the planar (2D), and everything else (3+D). So you can think of this as Mathematicians’ One-Two-Many Trichotomy. […]
]]>Comment on Riemann Hypothesis disproof #296 by David
https://numberwarrior.wordpress.com/2008/01/16/reimann-hypothesis-disproof-296/#comment-16974
Wed, 06 Jul 2016 23:42:12 +0000http://numberwarrior.wordpress.com/2008/01/16/reimann-hypothesis-disproof-296/#comment-16974What are you talking about? State the page and the line to which you are referring, and explain your claim.
]]>Comment on Jeff Miller’s Origin of Math Word Pages by Anonymous
https://numberwarrior.wordpress.com/2008/11/15/jeff-millers-origin-of-math-word-pages/#comment-16948
Fri, 17 Jun 2016 00:07:18 +0000http://numberwarrior.wordpress.com/?p=178#comment-16948I need a post about “the earliest uses of mathematical symbols”..
]]>Comment on Is “one, two, many” a myth? by Human sexuality is…..complicated: | kb3ojg
https://numberwarrior.wordpress.com/2010/07/30/is-one-two-many-a-myth/#comment-16935
Mon, 06 Jun 2016 03:47:11 +0000http://numberwarrior.wordpress.com/?p=1726#comment-16935[…] https://numberwarrior.wordpress.com/2010/07/30/is-one-two-many-a-myth/ […]
]]>Comment on Solving quadratics with a nomogram by A arte esquecida dos ábacos. Exemplo: a lei dos senos (republicação temporária) | Problemas e Teoremas
https://numberwarrior.wordpress.com/2010/04/19/solving-quadratics-with-a-nomogram/#comment-16932
Sat, 04 Jun 2016 09:48:29 +0000http://numberwarrior.wordpress.com/?p=1429#comment-16932[…] On Jargon, The Lost Art of Nomography, de que tive conhecimento através do post de Jason Dyer Solving quadratics with a nomograph, Ron Doerfler […]
]]>Comment on Commentary on “Wrong Answer: The Case Against Algebra II” by Noson Mikoto
https://numberwarrior.wordpress.com/2013/08/24/commentary-on-wrong-answer-the-case-against-algebra-ii/#comment-16887
Fri, 29 Apr 2016 01:04:56 +0000http://numberwarrior.wordpress.com/?p=2524#comment-16887Thought-provoking piece – I was fascinated by the points ! Does someone know if my assistant can obtain a sample UK Skandia Disinvestment Request example to fill out ?
]]>Comment on Commentary on “Wrong Answer: The Case Against Algebra II” by Anonymous
https://numberwarrior.wordpress.com/2013/08/24/commentary-on-wrong-answer-the-case-against-algebra-ii/#comment-16840
Mon, 28 Mar 2016 11:47:55 +0000http://numberwarrior.wordpress.com/?p=2524#comment-16840I’m not sure what the point is either, I’m still trying to calculate if 21 of 30 free throws is 70%, how to prove 6 more makes 75%?
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