# surds

Noun

- plural form of
*surd*

- (v.) Permutations and Combinations may be regarded as arithmetical recreations; they become important algebraically in reference to the binomial theroem (ï¿½ï¿½ 41, 44)ï¿½ (vi.)
**Surds**and Approximate Logarithms. - From the arithmetical point of view,**surds**present a greater difficulty than negative quantities and fractional numbers. - (v.) Permutations and Combinations may be regarded as arithmetical recreations; they become important algebraically in reference to the binomial theroem (ï¿½ï¿½ 41, 44)ï¿½ (vi.)
**Surds**and Approximate Logarithms. - From the arithmetical point of view,**surds**present a greater difficulty than negative quantities and fractional numbers. - In actual practice,
**surds**mainly arise out of mensuration; and we can then give an exact definition by graphical methods. - There are extensions of the binomial theorem, by means of which approximate calculations can be made of fractions,
**surds**, and powers of fractions and of**surds**; the main difference being that the number of terms which can be taken into account is unlimited, so that, although we may approach nearer and nearer to the true value, we never attain it exactly. - On the other hand, this new series is not continuous; for we know that there are some points on the line which represent
**surds**and other irrational numbers, and these numbers are not contained in our series.

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