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Dimitri,
Very nice....exactly as expected.
Thank you
Anthony
----- Original Message -----
From: "DIMITRIS TSOKAKIS" <TSOKAKIS@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Sunday, January 25, 2004 4:45 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
> > >
> > >
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