TIB: Invalid instruction?
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TIB: Invalid instruction?
I have a TI-86 calculator - v 1.3. An instruction to erase lines is in the
user manual.
To enter a line, one might type: line(3,12,15,12)
To erase a line, you're supposed to be able to put: line(3,12,15,12,0)
((The zero is there to tell the calc to erase the line.))
I cannot get this function to work. Could it be my calc, or is this feature
only on a different version, maybe?
Believe me, I typed it in correct to begin with (about a dozen times).
I'd appreciate it if someone could shed some light on this.
-Echo
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