Page 12-42
•
Press
„ô
, simultaneously if in RPN mode, to access the PLOT SETUP
window.
•
Press
˜
and type ‘(X+Y)*SIN(Y)’
@@@OK@@@
.
•
Press
@ERASE @DRAW
to produce the Y-Slice animation.
•
Press
$
to stop the animation.
•
Press
@CANCL
to return to the PLOT WINDOW environment. Then, press
$
, or
L
@@@OK@@@
, to return to normal calculator display.
Gridmap plots
Gridmap
plots produce a grid of orthogonal curves describing a function of a
complex variable of the form w =f(z) = f(x+iy), where z = x+iy is a complex
variable. The functions plotted correspond to the real and imaginary part of
w =
Φ
(x,y) + i
Ψ
(x,y), i.e., they represent curves
Φ
(x,y) =constant, and
Ψ
(x,y)
= constant. For example, to produce a Gridmap plot for the function w =
sin(z), use the following:
•
Press
„ô
, simultaneously if in RPN mode, to access to the PLOT
SETUP window.
•
Change
TYPE
to
Gridmap.
•
Press
˜
and type ‘SIN(X+i*Y)’
@@@OK@@@
.
•
Make sure that ‘X’ is selected as the
Indep:
and ‘Y’ as the
Depnd:
variables.
•
Press
L
@@@OK@@@
to return to normal calculator display.
•
Press
„ò
, simultaneously if in RPN mode, to access the PLOT
WINDOW screen.
•
Keep the default plot window ranges to read:
X-Left:-1, X-Right:1, Y-Near:-1
Y-Far: 1, XXLeft:-1 XXRight:1, YYNear:-1, yyFar: 1,
Step Indep: 10 Depnd: 8
•
Press
@ERASE @DRAW
to draw the gridmap plot. The result is a grid of
functions corresponding to the real and imaginary parts of the complex
function.
•
Press
@EDIT
L
@LABEL @MENU
to see the graph with labels and ranges.
•
Press
LL
@)PICT @CANCL
to return to the PLOT WINDOW environment.
