ATAN2 geometric function and pasing DECFLOAT34 in Sin, cos and Tan.

Hello,
1) Is there any macro,Function module or any way to use atan2 is a variation of the arctangent function in ABAP
atan2 is available in C, C++, java but i don't seem to find it in ABAP.
Further details : --- http://en.wikipedia.org/wiki/Atan2
2) The current limitation for Sin , Cos and tan geometric functions is Float.
I am looking for a way to pass a double (DECFLOAT34) into SIn or Cos.
I do not want to lose the accuracy by using Float.
Can this be done ?
Regards,
Ajay Kulkarni

Hello Alvaro,
I have written the following code for atan2 accordingly but it is not as accurate as i wan't it to be.
The results are not accurate.
Regards,
Ajay K
method ATAN2.
DATA :
       xsqr TYPE DECFLOAT34,
       ysqr TYPE DECFLOAT34,
       xysqr TYPE DECFLOAT34,
       xysqrt TYPE DECFLOAT34,
       tempa TYPE DECFLOAT34,
       tempb TYPE DECFLOAT34,
       tempc TYPE DECFLOAT34,
       x TYPE DECFLOAT34,
       y TYPE DECFLOAT34,
       atan2 TYPE f.
data tempb_float TYPE f.
data tempd_float TYPE f.
x = iv_x.
y = iv_y.
if x = 0 and y = 0.
ans not defined
ELSE.
    xsqr = x * x .
    ysqr = y * y .
    xysqr = xsqr + ysqr.
    xysqrt = sqrt( xysqr ).
    tempa = xysqrt - x.
    tempb = tempa / y .
    tempb_float = tempb.
    tempd_float = atan( tempb_float ).
    tempc = 2 * tempd_float.
    ev_atan2 = tempc.
ENDIF.
endmethod.

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You can always look in the src.zip at the source code.
Did you get these polynomial approximations out of Abramowitz and Stegun? If not, go find out what that is.
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Message Received: May 04 2015, 04:52 PM
From: "dj_paige" <[email protected]>
To: "Carlo Bragagnolo" <[email protected]>
Cc:
Subject: I have just sought to update my lightroom and am now unable to access the develop function and get a note stating that I have
reduced functionality what it this about and how do I get my product back
dj_paige created the discussion
"I have just sought to update my lightroom and am now unable to access the develop function and get a note stating that I have reduced functionality what it
this about and how do I get my product back"
To view the discussion, visit: https://forums.adobe.com/message/7510559#7510559
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String DBTABLE = a[0];
String lookUpField = d[0];
String WHERE_CLAUSE = "A"" = ""'"b[0]"'"" and B = ""'"c[G]"'";
Now this one was with the internal container logic:
int G;
String DBTABLE = a[0];
String lookUpField = d[0];
String Num;
Num = (String)getParameter(e[0]);
if (Num == null) G = 0;
else
G = Integer.parseInt(Num);
G = G + 1;
Num = "" + G;
setParameter(e[0], Num);
String WHERE_CLAUSE = "A"" = ""'"b[0]"'"" and B = ""'"c[G]"'";
And now with the Seeburger Variables:
int G;
try {
VariableBean be=VariableFactory.getVariableInstance("");
G = Integer.parseInt(String.valueOf(be.getStringVariable("yves")));
} catch (Exception f) {
throw new RuntimeException(f);
String DBTABLE = a[0];
String lookUpField = d[0];
String WHERE_CLAUSE = "A"" = ""'"b[0]"'"" and B = ""'"c[G]"'";
try {
G = G + 1;
Num = "" + G;
VariableBean be=VariableFactory.getVariableInstance("");
be.setStringVariable("yves",Num);
catch (Exception f) {
throw new RuntimeException(f);
All 3 logics were returning always the first row or a counter of 1 if the logic is in the main ReadTable function.

ATAN2 geometric function and pasing DECFLOAT34 in Sin, cos and Tan.

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