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Month: January 2015

Other mathematics

Slide rules and calculators

Posted on January 31, 2015 by Clio Corvid / 0 Comment

Several of my math teacher colleagues are of the opinion that calculators have destroyed math sense. I am not convinced that this is directly true: Calculators ...

Other mathematics

MEYL: Q. 1194

Posted on January 24, 2015 by Clio Corvid / 0 Comment

This is my translation of Meyl’s 1878 proof that a triangular pyramid of balls will only have a square number of balls if the base side is two or forty-eight. &...

Other mathematics

Lucas: Q. 1180

Posted on January 24, 2015 by Clio Corvid / 1 Comment

This is my translation of Lucas’s 1877 proof that a square pyramid of balls will only have a square number of balls if the base side is twenty-four. ̶...

Other mathematics

Gerono: Q. 1177

Posted on January 24, 2015 by Clio Corvid / 1 Comment

This is my translation of Gerono’s 1877 proof listing all the possible solutions (x, y) for the equation \(y^2 = x^3 + x^2 + x + 1\). “Solutions to ...

Other mathematics

Pyramids and Squares

Posted on January 23, 2015 by Clio Corvid / 0 Comment

I have been spending my free time the last few days on the task of working backwards through three proofs in a 19th century French language mathematics journal....

Other mathematics

Numeracy vs. mathematical literacy

Posted on January 19, 2015 by Clio Corvid / 0 Comment

Effective mathematics involves two distinct acts: Parsing and writing mathematical symbols to create meaningful messages Applying an understanding of mathematic...

Other mathematics

SSA Congruence: Constraints

Posted on January 8, 2015 by Clio Corvid / 0 Comment

In my last post, I pointed out that SSA is in fact sufficient for determining all three sides and angles under certain conditions. In this post, I will specify ...

Other mathematics

Fibs Our Geometry Teachers Told Us: SSA

Posted on January 7, 2015 by Clio Corvid / 1 Comment

There is a standard litany of theorems involving proving triangle congruence that has remained largely unchanged since my high school days. I was told that, to ...

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