d89-bfr@sm.luth.se (d89-bfr) (03/15/90)
Sometimes it's nice to know the sign of a function and where the function is tested, when solving for roots. The derivate would also be nice to know. The sign of the function, and where it is tested can be showed. I noticed this when I slipped on my fingers. If you after pushing [SHIFT] [var], press [ENTER], you will see two rows looking like this s xxxxxxxx s xxxxxxxx Where s is the sign of the function at the value xxxxxxxx. This way you can see how the progress of the root finding. At least I didn't know about this and I certainly haven't found it in the manuals. _ /Bjorn.
jall@diku.dk (Mogens Jallberg) (03/21/90)
d89-bfr@sm.luth.se (d89-bfr) writes: >At least I didn't >know about this and I certainly haven't found it in the manuals. I hate to dissapoint you, but the feature is in fact described in the manuals. I do not remember where, though. Mogens Jallberg