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Overview
There are 6 types of standard numerical data, namely double, float, int, short, uchar and bool, as shown in the table below.
|
Name |
Type |
byte |
Range |
|
double |
double precision floating point
data |
8 |
about +2.0e+308 (16 significant digits) |
|
float |
single precision floating point
data |
4 |
about +2.0e+38 (7 significant digits) |
|
int |
signed integer number |
4 |
-2147483648 to 2147483649 |
|
short |
signed short integer |
2 |
-32767 to 32768 |
|
uchar |
unsigned char |
1 |
0 - 255 |
|
bool |
boolean |
1 |
0 -1 |
Function
Numerical data type has no class function. Each data type name itself is in fact a global function, for example:
|
->a = int() ->b = short(19.2) |
a is an integer variable, having a
value of "0" b is a short integer variable, having a value of "19" |
Casting
Casting between each type of numerical data is fully provided in Noobeed. In an operator expression, casting is done in such away that the original data type gets a higher level of precision as much as the highest precision data type in the expression being evaluated. In a function expression, casting is done on arguments of a function to make the data type of the arguments the same data type as what are declared in the function protocol.
Example:
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->a = int(8.1) ->a 8 ->b = sin(a) |
the number 8.1 is converted to 8
variable a is converted to double precision, because the argument of function "sin" requires a double precision number. |