Appendix A: Error Conditions 207
Error 3
: Improper Register Number or Matrix Element
Storage register named is nonexistent or matrix element indicated is
nonexistent.
Error 4
: Improper Line Number or Label Call
Line number called for is currently unoccupied or nonexistent (>672); or
you have attempted to load a program line without available space; or the
label called does not exist; or User mode is on and you did not press ´
before ¤, ', @, y or ⁄.
Error 5
: Subroutine Level Too Deep
Subroutine nested more than seven deep.
Error 6
: Improper Flag Number
Attempted a flag number >9.
Error 7
: Recursive _ or f
A subroutine which is called by _ also contains a _
instruction; a subroutine which is called by f also contains an f
instruction.
Error 8
: No Root
_ unable to find a root using given estimates.
Error 9
: Service
An incompatible self-test from the original HP-15C was attempted. This
error can be ignored. See Appendix F for the correct HP 15c CE self-tests.
Error 10
: Insufficient Memory
There is not enough memory available to perform a given operation.
Error 11
: Improper Matrix Argument
Inconsistent or improper matrix arguments for a given matrix operation:
+ or -, where the dimensions are incompatible.
*, where:
the dimensions are incompatible; or
the result is one of the arguments.