New source of inspiration/data

[The Doc]

Wouldn't it have been quicker to use the calculator for a simple equation like 450/2400x768

Joking aside Gary I know what you mean about math in the 1950's the only 'calculators' available then were log tables and slide rules.

[tonylondon]

Here is a method that doesn't involve any calculations.

[accessD]

... Where was WolframAlpha when I was struggling with Algebra (in the 1950s)?

According to Wikipedia Mr. Wolfram was born in 1959

http://en.wikipedia.org/wiki/Stephen_Wolfram

[gwpriester]

He was already ahead of me the day he was born.

[jclements]

To SS Kalm:

Just break a cycle off at the correct nodes (change the nodes to cusps first), then copy the result and string them together.