Y-F(X) Calculator

Estos son los ficheros que necesitas. Puedes enviarlos desde el contenido del paquete.

• YFUNX.EXE → A:\SOFT programa de DOS 213.5 KB

No hace falta llevar al palmtop YFUNX.TXT, YFUNX.ICO: son manuales, código fuente o material de apoyo. Léelos aquí y ahórrate 69.0 KB en un disco de 1 MB.

1. Copia YFUNX.EXE a A:\SOFT. Son programas de DOS: se ejecutan desde el icono DOS, o añadiendo A:\SOFT al PATH de C:\AUTOEXEC.BAT para poder llamarlos por su nombre.

Deducido del contenido del paquete y de las convenciones del 200LX. Se instala en A: a propósito: C: es un disco RAM y cada byte ahí resta memoria al sistema.

GETTING STARTED

To begin running the YFUNX program type the command:

                          <Y> <F> <U> <N> <X> <ENTER>



A FIRST EXAMPLE

You can't perform any really useful operations (except reading the Main Menu
help screens) without first keying in a function.  So perform the first menu
item by pressing

to key in a new function.  An edit box will appear on the screen into which
you are to type your mathematical formula.  The first example function we will
enter is the straight line  Y = 2X + 3.  The asterisk character * is used to
to indicate multiplication.  Note that you do not type in the Y = part of the
formula since this program knows Y is a function of X.  Type

                          <2> <*> <X> <+> <3> <ENTER>

After pressing ENTER a brief message should appear indicating your function
formula has been accepted and the new formula should now appear at the top of
the Main Menu display screen.

                                "f(X) = 2*X+3".

We will now go the Graph Menu by pressing key


You should see a new menu labeled as the "Graph Menu".  Press key


a second time and you should see the graph of a line with slope 2 and
y-intercept 3.  It is normal for the program to sound a short beep to indicate
it is finished making a graph.  After admiring the graph press either

                                <ESC> or <ENTER>

and you should return back to the Graph Menu.  Entering and graphing most
functions is about as simple as this first example.  To return to the Main
Menu from the Graph Menu press

                                <ESC> or <ENTER>

a second time.



A SECOND EXAMPLE

For our second example we are going to enter the function  Y = 2*SIN(X).
Press key


to begin entering a new function.  Type in the following formula in the
dialog box.
…

Extracto literal de YFUNX.TXT, tal cual venía en el paquete.