WHATS NEW IN PERSONAL APT V1.5

* Added the CANF(sname, element_number) function.  CANF is 
used to extract one of the scalar values from the 
canonical form of a defined element.  CANF is generally 
easier to use than the OBTAIN statement for extracting 
such scalar values.  Also, the CANF function may be used 
in a computation expression the same as any other 
function.  For example;

          P1= POINT/ CANF(PX, 1), CANF(PY,2), 0

In the preceding example, P1 is defined as having the same 
X value as PX and the same Y value as PY.


* Also, added the following functions for extracting 
scalar values from the canonical form of defined elements.

          XVALF ---- For Points and Circles
                 scalar= XVALF([point-circle])
          YVALF ---- For Points and Circles
                 scalar= YVALF([point-circle])
          ZVALF ---- For Points
                 scalar= ZVALF(point)
          RVALF ---- For Circles
                 scalar= RVALF(circle)
          IVALF ---- For Lines, Planes and Vectors
                 scalar= IVALF([line-plane-vector])
          JVALF ---- For Lines, Planes and Vectors
                 scalar= JVALF([line-plane-vector])
          KVALF ---- For Lines, Planes and Vectors
                 scalar= KVALF([line-plane-vector])
          DVALF ---- For Lines and Planes
                 scalar= DVALF([line-plane])
          ANGLF ---- For Lines
                 scalar= ANGLF(line)
          ANGLF ---- For angle of point on a circle
                 scalar= ANGLF(circle, point)
          ROTF  ---- For Planes (XY Angle of the normal  
                     vector, which will point in the  
                     direction of the highest             
                     elevation of the plane)
                 scalar= ROTF(plane)
          TILTF ---- For Planes (Angle plane makes with XY  
                     plane)
                 scalar= TILTF(plane)
          LNTHF ---- For Vectors
                 scalar= LNTHF(vector)
          DMSF  ---- Convert degrees, minutes & seconds to  
                     decimal.
                 scalar= DMSF(degrees, minutes, seconds)


             WHATS NEW IN PERSONAL APT V1.50        PAGE 2

* Added two new point definition formats;

        P1=POINT/ spoint, DELTA, svector
        P2=POINT/CLDATA

* Added options to the Configuration Menu to avoid 
deleting the *.LST and *.CLF files

* Increased the number of MACROs allowable in one program 
to 32.  Increased the total number of MACRO variables 
allowed in one program to 128.

* Added the the ability to use planes as drive and check 
surfaces.

* Added the ability to use the cursor keys to select a 
part program file name from the displayed list for the 
LOAD command.  The first 300 file names in the directory, 
with the APT extension, will be sorted in alphabetical 
order and displayed in a frame to the right of the screen.  
The Up/Dn cursor keys may be used to highlight one of 
these file names.  When the correct file name is high
lighted, press the ENTER key.  Of course, you may still 
type the file name as before.