geometric progression
–noun Mathematics. | a sequence of terms in which the ratio between any two successive terms is the same, as the progression 1, 3, 9, 27, 81 or 144, 12, 1, 1/12 , 1/144 . |
Origin: 1550–60
geometric series
n. A series whose terms form a geometric progression, such as a + ax + ax2 + ax3 + . . . |
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Science Dictionary
geometric progression
A sequence of numbers in which each number is multiplied by the same factor to obtain the next number in the sequence. In a geometric progression, the ratio of any two adjacent numbers is the same. An example is 5, 25, 125, 625, ... , where each number is multiplied by 5 to obtain the following number, and the ratio of any number to the next number is always 1 to 5. Compare arithmetic progression.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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