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| the process of replacing a number by another number of approximately the same value but having fewer digits |
| an expression or a proposition, often algebraic, asserting the equality of two quantities |
| harmonic progression | |
| —n | |
| a sequence of numbers whose reciprocals form an arithmetic progression, as 1, ½, 1⁄3, … | |
| harmonic progression
A sequence of quantities whose reciprocals form an arithmetic progression, such as 1, 1/3 , 1/5 , 1/7 , .... and so on. |