[VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" Special

[J-F Garnier]

(05-17-2018 09:12 PM)Valentin Albillo Wrote:  ... the 71B was also much cheaper (and 5 times slower !) than the 75CD (which I never liked, too bulky, bad keyboard layout, mediocre BASIC).

I do also prefer the HP71, but the HP75 is an interesting machine, too.
Especially the 16kB Math module is very good, much more powerful than the HP80 series Matrix ROM. It has matrix functions, complex number support (although not as nicely integrated than on the HP71), various utility math functions, the PROOT polynomial root finder, the Fourier Transform and more important the FNROOT and INTEGRAL functions.

That is quite the same feature set than the 71.
Or we may better say that the HP71 Math ROM included all the previous HP75 Math ROM features, adding a better integration with the mainframe (e.g. complex number) and improvements such as the re-entrant FNROOT and INTEGRAL functions.

And with emu75 (very similar to emu71/DOS that you know very well), the first two drawbacks mentioned above are no more relevant :-)

J-F