Reference Guide

C-2 System Flags
System Flags (continued)
Flag Description
– 20
Underflow Exception.
Clear: Underflow exception returns 0, sets flag – 23 or – 24.
Set: Underflow exception treated as an error.
– 21
Overflow Exception.
Clear: Overflow exception returns ± 9.99999999999E499 and sets flag – 25.
Set: Overflow exception treated as an error.
– 22
Infinite Result Exception.
Clear: Infinite result exception treated as an error.
Set: Infinite result exception returns ± 9.99999999999E499 and sets flag – 26.
–23
–24
–25
–26
Negative Underflow Indicator.
Positive Underflow Indicator.
Overflow Indicator.
Infinite Result Indicator.
When an exception occurs, corresponding flag ( – 23 through – 26) is set only if
the exception is not treated as an error.
– 27
Display of symbolic complex numbers.
Clear: Displays symbolic complex numbers in coordinate form (i.e. '(x,y)' ).
Set (default): Displays symbolic complex numbers using 'i' (i.e. 'x+y*i' ).
– 28
Simultaneous Plotting of Multiple Functions.
Clear: Multiple equations are plotted serially.
Set: Multiple equations are plotted simultaneously.
– 29
Draw Axes.
Clear: Axes are drawn for two-dimensional and statistical plots.
Set: Axes are not drawn for two-dimensional and statistical plots.
– 30
Not used.
– 31
Curve Filling.
Clear: Curve filling between plotted points enabled.
Set: Curve filling between plotted points suppressed.
– 32
Graphics Cursor.
Clear: Graphics cursor always dark.
Set: Graphics cursor dark on light background and light on dark background.
– 33
I/O Device.
Clear: I/O directed to USB/serial port.
Set: I/O directed to IrDA port.
– 34
Printing Device.
Clear: Prints via IR to the HP 82240 printer. Flag –33 is ignored.
Set (default): Printer output directed to USB/serial port if flag –33 is clear, or to
IrDA compatible printer otherwise.
– 35
Kermit I/O Data Format.
Clear: Objects transmitted in ASCII form.
Set: Objects transmitted in binary (memory image) form.