[5471] in Athena Bugs

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R4 xcalc is totally fucked!

daemon@ATHENA.MIT.EDU (Joe Harrington)
Tue Jul 10 21:42:55 1990

Date: Tue, 10 Jul 90 17:28:38 -0400
From: Joe Harrington <jh@ATHENA.MIT.EDU>
To: bugs@ATHENA.MIT.EDU
Cc: jh@ATHENA.MIT.EDU
Reply-To: jh@ATHENA.MIT.EDU

does not emulate a TI calculator in the following way:

.00021
EE
=

on a TI, this results in 2.1 -4 (2.1 times 10^-4)
in xcalc, it results in 0.00021, and if you do
EE
=
a second time, the number is lost and the display shows 0 !

Many TI users such as myself routinely do EE = to avoid losing
precision, as the TI will forget the last digits of 1.2345E-7 if it
displays it as an ordinary decimal.

I just discovered something much worse.  Try:

1
+
1.2345678
EE
-12

see how far you get and can still understand the answers!  On a TI,
you can ALWAYS enter 2 digits of exponent.

Is the R3 version lying around somewhere?

--jh--

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