- double: for floating-point or real numbers with optional decimal points and fractional parts in fixed or scientific notations,

Question

Can you dum it down please

Answer 1

Technically, value are stored in memory as 0s & 1s (binary). In the 'real world' we deal with decimal values (base 10). So numeric data type like integer, float & double float (for larger values) enable representation in decimal format

Answer 2

👌
👀 https://en.m.wikipedia.org/wiki/Data_type

Answer 3

double lets you store decimal numbers with a higher precision (more decimals) than float. Tell me if it helps. :D

Answer 4

Yes. That's right, but the question request was to dumb it down, so I try not to explain technical things.