andle rectilinear, polar and vector
 plotting. After plotting, you may review a tabulation of all plotted points
 (except for the vector program).

 These programs were written in BASICA to take advantage of a unique BASICA
 capability - the CHAIN MERGE feature. When you enter an equation to be
 plotted, you may enter it just as you would write it on paper. The
 program accepts your equation as a string variable, appends your equation
 to a string that defines a line number then writes the whole string to a
 file (FCT1.BAS for example). This file is then CHAIN MERGED with the
 program itself and your equation becomes an executable line of code,
 complete with a line number in the program. Unfortunately, existing
 compilers can not compile the CHAIN MERGE statement.

 We felt that being able to enter the equation in standard equation format was
 so important that we have released these programs in BASICA.  No other
 language that we know of allows a chain-merge-like function and writing the
 function in another language would be a formidable task. Chalk one up for
 BASIC! Although not extremely fast, we think that you will find the plotting
 speed of these programs satisfactory.

 SPECIAL NOTE: Because of the technique mentioned above, you will render
               these pro