Help please? 20S->35S

[Thomas Klemm]

I'll give it a try though I could be completely wrong:

Code:

COS(C)*COS(B)+i*SIN(C)
ABS
LASTx
ARG
RCL+ A
REGY*COS(REGX)+i*COS(C)*COS(B)
ARG
LASTx
ABS
ACOS

As with Dave's program for the HP-32S the registers A, B and C are used.

Example:
30 STO A
40 STO B
50 STO C
R/S

84.96
60.38

Does this make sense?

Cheers
Thomas