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RE: [amibroker] need help for someone



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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>   > >>   > 
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