First non-HP pocket calculator with scientific functions ?

[Gene]

I thought TI (the SR-50) was second as well. :-)

But datamath.org lists the SR-50 introduction date as January 15, 1974, and I have found concrete proof (newspaper ads) showing the Rockwell 202SR a month earlier than that. Earliest SR-50 ad is after the introduction date... so that's why I came to the surprising conclusion!