## surds

Noun

- plural form of
*surd*

- Roots and
**Surds**8.2 85. - Multiplication and Division of
**Surds**8.4 87. - We can, however, denote the result of the process by a symbol, and deal with this symbol according to the laws of arithmetic. In this way we arrive at (i) negative numbers, (ii) fractional numbers, (iii)
**surds**, (iv) logarithms (in the ordinary sense of the word). - Also most fractions cannot be expressed exactly as decimals; and this is also the case for
**surds**and logarithms, as well as for the numbers expressing certain ratios which arise out of geometrical relations. - To add or subtract fractional numbers, we must reduce them to a common denominator; and similarly, to multiply or divide
**surds**, we must express them as power-numbers with the same index.

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