To reset calculator to default (warning - you lose all programs) * Blue-2nd Mem(6) * F1 to reset Important: To get program menu: quit whatever program is running * blue 2nd, quit
To navigate crosshair cursor, visit the Graph screen * Green diamond + Graph (F3) * navigate using arrow keys * coordinates "xc" and "yc" indicated on screen bottom * observe: x, y range; x, y interval
If x or y interval is not unit: * due to x and y range not equal to image dimensions in pixels ** height = 159 ** width = 77
To adjust x and y range, set "window" parameters * Green diamond + window (F2) * to put origin at left-bottom: ** xmin = 0, xmax = 158, ymin = 0, ymax = 76 * to put origin up 20 pixels ** ymin = -20, ymax = 56
To enable/disable drawing of axes * First display window parameters ** Green diamond + window (F2) ** Select tools menu (F1, as indicated on LCD) ** At very bottom (scroll down): select Format ** arrows to "axes", right arrow for on/off; enter
To draw artifical x axis: * Y= menu * Set Y1 to 0. * Will be plotted automatically every time screen is cleared.
To edit a program * start at main menu (2nd quit whatever else is running) * select :Prgm editor on LCD * if new, will need to provide a name (variable) * when done, just quit out (no undo)
To run a program "p" * select "home". There's a button called home. Use it. * at bottom, type p(), then enter. parentheses are needed
Some sample programs * to type relational "test" operators (e.g. <) Press 2nd Math(5), test
:hline()
:Prgm
:1->x
:30->y
:While x<30
:PtOn x,y
:x+1->x
:EndWhile
:EndPrgm
:dline()
:Prgm
:1->x
:30->y
:While x<30
:PtOn x,y
:x+1->x
:y+1->y
:EndWhile
:EndPrgm
This page was constructed by Alex Ogrey and Eric Freudenthal |