The Number Variable Data Type The Number Variable Data Type

The Number Variable Data Type

Adam Evans Adam Evans
The Number Airkit type is used to describe real numbers. These numbers can
contain decimals such as 3.14159. Negative Numbers are represented by
preceding the number with a negative sign: -3.14159. Very large or small
numbers can be entered using scientific notation which multiplies a base Number
by some multiple of ten. For example, the Number 2.99792458E8
is the same number as 299792458 by multiplying the Number 2.99792458 by
100000000 which has eight zeros. Likewise for negative numbers, the Number
6.62607004E-34 is the same number as
0.000000000000000000000000000000000062607004.

 

Internally Number's are represented as double-precision 64-bit binary format
IEEE 754 values. For most use cases this is an unimportant detail, however it
is important to keep in mind as certain numbers cannot be represented
accurately. For example the expression 0.1 + 0.2 will evaluate to
0.30000000000000004 rather than 0.3 exactly.

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