A SERVICE OF

logo

Messages F–1
F
Messages
The calculator responds to certain conditions or keystrokes by displaying a
message. The
¤
symbol comes on to call your attention to the message. For
significant conditions, the message remains until you clear it. Pressing
or
b
clears the message; pressing any other key clears the message and executes that
key's function.
³
 !#
A running program attempted to select a program
label (
/
label
) while an integration calculation was
running.
³
1
³
2
A running program attempted to integrate a program (
³
 G
variable
) while another integration calculation
was running.
³
1 #2
A running program attempted to solve a program while
an integration calculation was running.
 # /
The catalog of variables (
{Y
{
#
} )
indicates no values stored.
"!
The calculator is executing a function that might take a
while.
 @ &
Allows you to verily clearing the equation you are
editing. (Occurs only in Equation–entry mode.)
  @ &
Allows you to verify clearing all programs in memory.
(Occurs only in Program–entry mode.)
# &
Attempted to divide by zero. (Includes
T
if
Y–register contains zero.)
"!)
Attempted to enter a program label that already exists
for another program routine.
  ! !
Indicates the "top" of equation memory. The memory
scheme is circular, so
  ! !
is also the
"equation" after the last equation in equation memory.