Any RPN, No regs, line given 2 points

[Dieter]

(12-24-2017 12:58 PM)Mike (Stgt) Wrote:  Special version for HP41

Yes, direct stack access on the 41 and 42 is nice.
But equations are even nicer – e.g. on the 35s:

Code:

(REGT-REGY)/(REGZ-REGX)
REGZ-REGYxREGX
X<>Y

(12-24-2017 12:58 PM)Mike (Stgt) Wrote:  Output - slope in X, y-axis intercept in Y.

Same here.

But all these are no universal solutions that will run on virtually any programmable HP RPN device, such as the solution in the initial post.

Dieter