| Mathematics desk | ||
|---|---|---|
| < October 9 | << Sep | October | Nov >> | October 11 > |
| Welcome to the Wikipedia Mathematics Reference Desk Archives |
|---|
| The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
What is the name of a progression where there are two or more ratios which alternate every step.
E.g., two ratios 5 and 2
1,5,10,50,100,500,1000,5000,10000,...
Three ratios 5, 2, 10
1,5,10,100,500,1000,10000,...
Or 2, 5, 10
1,2,10,100,200,1000,10000,...
Or 2, 3, 5, 10
1,2,6,30,300,600,1800,9000,90000,...
-- Lüboslóv Yęzýkin ( talk) 06:39, 10 October 2016 (UTC)
- I don't know a name for such progressions, but they are geometric progressions added together:
- (1, 10, 100, 1000, ... ...) + (5, 50, 500, 5000, ... ...)
- Dolphin ( t) 11:25, 10 October 2016 (UTC)
- Well, it's a specific kind of interleave sequence. And for the ones with three or more ratios, it's a generalization of that, if the article's definition is complete. -- 69.159.61.230 ( talk) 18:32, 10 October 2016 (UTC)
Preferred number. Bo Jacoby ( talk) 05:40, 11 October 2016 (UTC).
| Mathematics desk | ||
|---|---|---|
| < October 9 | << Sep | October | Nov >> | October 11 > |
| Welcome to the Wikipedia Mathematics Reference Desk Archives |
|---|
| The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
What is the name of a progression where there are two or more ratios which alternate every step.
E.g., two ratios 5 and 2
1,5,10,50,100,500,1000,5000,10000,...
Three ratios 5, 2, 10
1,5,10,100,500,1000,10000,...
Or 2, 5, 10
1,2,10,100,200,1000,10000,...
Or 2, 3, 5, 10
1,2,6,30,300,600,1800,9000,90000,...
-- Lüboslóv Yęzýkin ( talk) 06:39, 10 October 2016 (UTC)
- I don't know a name for such progressions, but they are geometric progressions added together:
- (1, 10, 100, 1000, ... ...) + (5, 50, 500, 5000, ... ...)
- Dolphin ( t) 11:25, 10 October 2016 (UTC)
- Well, it's a specific kind of interleave sequence. And for the ones with three or more ratios, it's a generalization of that, if the article's definition is complete. -- 69.159.61.230 ( talk) 18:32, 10 October 2016 (UTC)
Preferred number. Bo Jacoby ( talk) 05:40, 11 October 2016 (UTC).