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Numerical Data |
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Numerical Data |
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 +3.0e+38 (8 significant digits) |
| float | single precision floating point data | 4 | about +3.0e+308 (16 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:
| ->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. |