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Dimitris,
I guess it's undocumented.
Stewart
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
DIMITRIS
TSOKAKIS
To: <A title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Sunday, January 25, 2004 11:24
PM
Subject: [amibroker] Re: Slope in
radians? question for Math geniuses
Stewart,There was no such function in 4.50 User's
guide.Do I miss something ?Dimitris Tsokakis--- In <A
href="">amibroker@xxxxxxxxxxxxxxx, <<A
href="">stewartgotlieb@x...> wrote:>
DT,> > AFL does have tangent - it's TAN().> >
Regards,> > Stewart> ----- Original Message
----- > From: DIMITRIS TSOKAKIS > To: <A
href="">amibroker@xxxxxxxxxxxxxxx
> Sent: Sunday, January 25, 2004 3:45
PM> Subject: [amibroker] Re: Slope in radians? question for
Math geniuses> > >
Anthony,> For any point , D bars before the end of an array
y, we may draw an > automatic line with ANGLEdeg [in
degrees, positive or negative.> Avoid +-90, the tan is not
defined there.> Since we do not have in AFL a tangent
function [as we miss pi], we > should use their
equivalents> >
D=50;ANGLEdeg=Param("a",45,-89,89,1);>
x=Cum(1);L1=LastValue(x);> y=RSI();>
x0=x[L1-D];> Y0=Y[L1-D];>
pi=4*atan(1);ANGLErad=pi*ANGLEdeg/180;>
z=y0+(sin(ANGLErad)/cos(ANGLErad))*(x-x0);>
Plot(y,"",1,1);>
Plot(IIf(x>=x0,z,-1e10),"",colorRed,1);>
Plot(IIf(x>=x0,y0,-1e10),"",colorRed,1);>
PlotShapes(shapeUpTriangle*(x==x0),colorYellow);>
Title="ANGLEdeg="+WriteVal(ANGLEdeg,1.0);> >
Dimitris Tsokakis> > > --- In
amibroker@xxxxxxxxxxxxxxx, "Anthony Faragasso" <ajf1111@xxxx>
> wrote:> >
Dimitri,> > > > Would it be
possible to work at this from a different >
way....something like:> > > >
Angle=Param("Angle",45,10,90,1);> > >
> Select an angle and then have the line drawn.> >
> > Anthony> > ----- Original
Message ----- > > From: "DIMITRIS TSOKAKIS"
<TSOKAKIS@xxxx>> > To:
<amibroker@xxxxxxxxxxxxxxx>> > Sent: Sunday,
January 25, 2004 5:59 AM> > Subject: [amibroker] Re:
Slope in radians? question for Math >
geniuses> > > >
> > > Suppose you START 50 bars before the last bar
and the END is 20 > bars> > >
ago.> > > For any ARRAY, the angle
is> > >> > >
START=50;END=30;> > >
ARRAY=RSI();> > >
L1=LastValue(Cum(1));> > >
X0=L1-START;X1=L1-END;> > >
Y0=ARRAY[X0];Y1=ARRAY[X1];> > >
Plot(ARRAY,"",1,1);> > >
Plot(LineArray(X0,Y0,X1,Y1),"",4,1);> > >
Plot(LineArray(X0,Y0,X1,Y0),"",4,1);> > >
ANGLE=atan((Y1-Y0)/(X1-X0));> > >
Title="ANGLE="+WriteVal(ANGLE)+" RADS"+", ["+WriteVal>
(45*ANGLE/atan> > > (1),1.0)+"
DEGS]";> > >> > > Replace
the ARRAY with yours and see the result in RADS [and >
DEGS].> > > Note that the calculation does not match
with the visual angle, > which> >
> depends on the applied zoom and the dimensions of your
graph.> > > Dimitris Tsokakis>
> > --- In amibroker@xxxxxxxxxxxxxxx, "epintoem" <epintoem@xxxx>
> wrote:> > > > Given two
points.... how could I calculate the slope of the line>
> > > connecting those two points....We have an atan function but
I > have> > >
no> > > > clue as to how to use
it.> > > >> > > >
Thanks for your help> > >> >
>> > > Send BUG REPORTS to
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