Negative Math: How Mathematical Rules Can Be Positively BentA student in class asks the math teacher: "Shouldn't minus times minus make minus?" Teachers soon convince most students that it does not. Yet the innocent question brings with it a germ of mathematical creativity. What happens if we encourage that thought, odd and ungrounded though it may seem?

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Negative math: how mathematical rules can be positively bent
Avis d'utilisateur  Not Available  Book VerdictIt's a rare person who describes negative numbers (or any numbers) as "unassuming but fun," and he is likely the same person who would notice that negative numbers "stand as just about the only kind ... Consulter l'avis complet
Table des matières
A number line  11 
Much Ado About  18 
Meaningful and Meaningless  43 
The sum of a positive number and an imaginary number represented as a line  45 
The geometric sum of two straight lines  63 
The complex number 4 + 5i represented as a diagonal line  75 
A rectangular triangle  76 
Making Radically  80 
A diagram of the Pythagorean theorem  144 
A triangle constructed on a plane of positive and imaginary numbers  146 
A representation of numbers as units on perpendicular lines  148 
Lines determined by the same two numbers but in different order  150 
Lines rotated 90 from one another without imaginary numbers  151 
Making chapter 7 a Meaningful Math  174 
notes  235 
further reading  249 