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(71b) Math-Rom advanced
01-02-2016, 06:31 AM
Post: #1
(71b) Math-Rom advanced
Hallo!

Yesterday I found an old forum task about an advanced Math-Rom: 50g/48GX vs. 71B matrix operations--getting slightly different results

Some times ago I bought a EPROM which included the Math-Rom and the JPC-ROM (E1) - that seems to be the version of Rodger Rosenbaum - I checked it with the changed "ARR" to "PERM"-LEX. No idea what the "1" is in "E1".
Although for the MATH-ROM I get the "MATH:1A" it seems to be the "X-ROM-version" described in the old forum thread (Rodger Rosenbaum?).

With the "test-prog"
Code:
10 OPTION BASE 1 @ DIM C(5) @ COMPLEX R(4)
20 READ C
30 MAT R=PROOT(C)
40 MAT DISP R;
100 DATA 1,4,6,4,1
I get the results
Code:
(-1,0)
 (-1,0)
 (-1,0)
 (-1,0)
Is there another way to check the differences and what differences are in this MATH-EPROM? The thread stopped 2007 without new information.

best regards
Erwin
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