HP (Hewlett-Packard) 50g ユーザーズマニュアル

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Page 12-10
Graph of the exponential function
First, load the function exp(X), by pressing, simultaneously if in RPN mode, the
left-shift key „ and the ñ  (V) key to access the PLOT-FUNCTION
window.   Press 
 @@DEL@@ to remove the function LN(X), if you didn’t delete Y1 as
suggested in the previous note.  Press  
@@ADD@!  and type  „¸~x` to
enter EXP(X) and return to the PLOT-FUNCTION window.  Press L
@@@OK@@@ to
return to normal calculator display.
Next, press, simultaneously if in RPN mode, the left-shift key  „ and the
ò (B) key to produce the PLOT WINDOW - FUNCTION window. Change
the H-View values to read:           H-View: -8       2
by using 8\
@@@OK@@ @2@@@OK@@@.  Next, press @AUTO.  After the vertical range is
calculated, press 
@ERASE  @DRAW to plot the exponential function.  
To add labels to the graph press 
@EDIT  L@)LABEL. Press   @MENU to remove the
menu labels, and get a full view of the graph.  Press LL
@)PICT! @CANCL to
return to the PLOT WINDOW – FUNCTION.   Press ` to return to normal
calculator display.  
Next, press ‚
@@@X@@@ to see the contents of this variable.  A value of 10.275 is 
placed in the stack.  This value is determined by our selection for the horizontal 
display range.   We selected a range between -1 and 10 for X.  To produce 
the graph, the calculator generates values between the range limits using a 
constant increment, and storing the values generated, one at a time, in the 
variable 
@@@X@@@ as the graph is drawn.  For the horizontal range ( –1,10), the 
increment used seems to be 0.275.  When the value of X becomes larger than 
the maximum value in the range (in this case, when X = 10.275), the drawing 
of the graph stops.  The last value of X for the graphic under consideration is 
kept in variable X.   Delete X and Y1 before continuing.