Surd numbers

Do not confuse irrational with imaginary quantities. Numbers like J2, s/5,. .. which cannot be obtained in the form of a whole number or finite fraction are said to be irrational or surd numbers. On the contrary, V4, /27,. .. are rational numbers. Although we cannot get the absolutely correct value of an irrational number, we can get as close an approximation as ever we please but we cannot even say that the imaginary quantity is entitled to be called a quantity. 

Transcendental numbers, which, in contrast to surds, do not derive from the solution to algebraic equations. Examples include n, which... 

Perhaps the most astonishing method uses only the number 2 and surds involving sums of 2 ... 

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