decimal64
Syntax
decimal64(X, scale)
Arguments
X is a scalar/vector of Integral, Floating, or STRING type.
scale is an integer in [0,18] that determines the number of digits to the right of the decimal point.
Details
Convert the input values into DECIMAL64.
Examples
a=decimal64(142, 2)
a
// output
142.00
b=decimal64(1\7, 6)
b
// output
0.142857
a+b
// output
142.142857
a*b
// output
20.28569400
decimal64("3.1415926535", 4)
// output
3.1415
// the elements of a DECIMAL vector must be of the same decimal type and scale
d1=[1.23$DECIMAL64(4), 3$DECIMAL64(4), 3.14$DECIMAL64(4)];
// output
[1.2300,3.0000,3.1400]
typestr(d1)
// output
FAST DECIMAL64 VECTOR
d2=[1.23$DECIMAL64(4), 3$DECIMAL64(4), 3.14$DECIMAL64(3)];
// output
(1.2300,3.0000,3.140)
typestr(d2)
// output
ANY VECTOR
Note: When converting data of STRING/SYMBOL type into DECIMAL,
there has been a modification in the way the decimal part exceeding the scale is
handled since version 2.00.10.
-
Before version 2.00.10, the decimal part is truncated;
-
Starting from version 2.00.10, the decimal part is rounded.
symbol(["1.341", "4.5677"])$DECIMAL64(2) //before version 2.00.10, the output is: [1.34,4.56] //starting from version 2.00.10, the output turns to: [1.34,4.57]