[6323] in Athena Bugs
vax 7.1H: xmath
daemon@ATHENA.MIT.EDU (Lisa N. Paradis)
Fri Nov 2 17:34:46 1990
To: bugs@ATHENA.MIT.EDU
Date: Fri, 02 Nov 90 17:34:32 EST
From: Lisa N. Paradis <lnp@ATHENA.MIT.EDU>
System name: tabetha
Type and version: CVAXSTAR 7.1H (1 update(s) to same version)
Display type: SM
Well, I'm really logged in on m4-167-11, an RT and I've added tabetha
to the access control list (xhost), telnet'd to tabetha, and I'm
running all my X stuff off of tabetha with the display set to
m4-167-11
What were you trying to do?
running xmath. I was trying to plot the function e^x.
xmath> plot exp(x)
What's wrong:
about where x = 20, there's a lot of unnecessary vertical
lines. I *know* that the function e^x does *NOT* do this. This could
cause lots of problems with calculus students (especially those who
are checking their answers to curve sketching problems). If this bug
cannot be fixed, then some warning should be part of the initial
startup message (not everyone knows about man pages).
When plotting something like e^x, the student should probably
realize that the cruft for x > 20 is probably a bug. However, when
the student is plotting something more involved (like (e^x * foo)
where foo is a complicated function), this could be a problem.
Mention of this bug should also appear in the man pages (I
haven't checked them yet, but if this isn't there, it should be added).
What should have happened:
e^x should be plottted correctly for x > 20
Please describe any relevant documentation references:
[Please replace this line with your information.]
