ARTICLE
abs , sign , ceil , floor , trunc ,
frac - Numerical Functions
The following table shows the general numerical functions for a single
unnamed argument with any numerical data type. These functions are
overloaded with the effect that the return value can have different
numerical types.
Syntax
... func( arg ) ...
Effect
The argument of a general numerical function must be an individual data
object outside an arithmetic expression, and can itself be a numeric
expression within an arithmetic expression.
Effect of the general numerical functions.
Function func Return Value
ABAP_KEY abs Absolute value of argument arg
ABAP_KEY sign Sign of argument arg : -1, if the value of
arg is negative; 0, if the value of arg is 0; 1, if the
value of arg is positive
ABAP_KEY ceil Smallest integer that is not less than the value
of the argument arg is
ABAP_KEY floor Largest integer that is not greater than the
value of the argument arg is
ABAP_KEY trunc Value of the integer part of the argument
arg
ABAP_KEY frac Value of the
decimal places of the argument arg
The following applies with regard to the data type of the return value:
With the exception of an
arithmetic expression , the data type of the argument determines the
data type of the return value.
Within an arithmetic expression, the argument of the function
contributes to the calculation type
of the entire expression and the function is calculated using the
calculation type. If the argument itself is an arithmetic expression,
its operands contribute to the entire calculation type and the argument
is also calculated with this type.
If the argument arg is a
numeric expression , the function works like an arithmetic operator
and it is handled in its operand position like an
arithmetic expression .
If the argument of a numerical function outside of an arithmetic
expression has no numerical data type, i ,
int8 ,
p , decfloat16 , decfloat34 , or f its data
type determines the type of return value as follows:
d and t give i
c , n and string give p
x and xstring give i
Before the calculation of the function, the argument is converted into
the respective type. .
Note
The functions described here are some of the functions that can be used
in the obsolete extended
functional operand positions , even if their argument is a single data
object.
Example
For a demonstration of the numeric functions, see
Numeric Functions .
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