What is it called, if I double a number and double that result again and double that result again and so on? for example:

3 - 6 - 12 -24
or
7.85 - 15.7 - 31.4 - 62.8

this kind of operation or row must have a specific name, hasn't it? it's not exponentiation and it's also not Multiples of a number. it's....

Question

What is it called, if I double a number and double that result again and double that result again and so on? for example:

3 - 6 - 12 -24
or
7.85 - 15.7 - 31.4 - 62.8

this kind of operation or row must have a specific name, hasn't it? it's not exponentiation and it's also not Multiples of a number. it's....

shadowlegendx · Answer

I think sequences maybe...

anonymous · Answer

hmm yeah, sequence could be true, since it could be defined recursively with $$x_n = x_{n-1} * 2$$

anonymous · Answer

right?

anonymous · Answer

yes this is geometric progession

anonymous · Answer

$x_{n+1}=2x_n\implies x_n=2^nx_0=3\cdot2^n$