Considering 35s acquisition

[Lars B]

Using the 35S as engineering tool is possible. I'm using it daily, but the lack of direct polar-rectangular conversion is really, really (!) annoying. The easy-to-use SOLVE function compensates slightly for that "bug", but not fully.

In fact, I bought a 15C LE just because of the missing P/R function. The 15 C is exactly what an engineer needs.