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atn2()
The
Mathematical Function
atn2()
returns the arc tangent angle in radian measure for the value of the parameter "number"
.
Syntax of the Mathematical Function atn2()
atn2(sin_number, cos_number)
The parameter "number" of the Mathematical Function atn2()
sin_number and cos_number
The parameters "sin_number" and "cos_number" are placeholders for
column names,
variables
or
constants,
which have to be available as
float,
real,
double precision
datatypes. Additionally, the parameters "sin_number" and "cos_number" recognise any other datatype which can be converted with
implicit conversion
into any of the required datatypes.
Example for the Mathematical Function atn2()
select atn2(0.50, 0.48)
go
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0.805803
Returns the arc tangent in radian measure for the ratio between sine and cosine.
select degrees(atn2(0.785398, 0.785398))
go
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45.000000
Returns the arc tangent for the ratio between sine and cosine.
See also:
ASE T-SQL - Aggregate Functions,
Mathematical Functions,
abs(),
acos(),
asin(),
atan(),
ceiling(),
cos(),
cot(),
degrees(),
exp(),
floor(),
log(),
log10(),
pi(),
power(),
radians(),
rand(),
round(),
sign(),
sin(),
sqrt(),
tan().
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