SwissMicros Calculator Forum

Walter wrote: ↑

Fri Jul 16, 2021 12:15 am

It's easy to calculate the number of functions you can feature if you don't allow for menus.

It's maximised when half the keys are prefix keys....


Pauli

I did at one point and had some nice cases made both for printers and calculators.

The guy who made them was later convicted for child molestation and is spending a long time in gaol. A good thing IMO.


Pauli

There are spaces in both the EXP and TRI menus, so we're not losing anything. Unless we start adding sec, cosec, cot and their hyperbolic equivalents :twisted: Jacobi's sn an cn are related to sin/sinh and cos/cosh respectively, so they might be a problem adding to the TRI menu (like sinh/cosh). The...

Walter wrote: ↑

Sat Apr 24, 2021 6:45 pm

Since e^x, LN, and x^2 don't count, of course...

I don't really count x^2, I use square root far more often. To my mind x^2 is for programs, ENTER * is a nice and quick sequence and I rarely need to maintain the top of stack when I'm computing by hand.

I came up with a third possibility overnight. Instead of y^x in the blue shifted location, we could add a new menu for elliptic functions. These functions bridge the gap between hyperbolic (in EXP) and trigonometric (in TRI) so would be a natural fit there. What would be in such a menu: The differen...

A second cooking in the range 80℃ to 90℃ an the last dot has come good. My DM 16C is happy again.


Pauli

I spoke too soon, the device came out of the oven about seven hours ago and one black pixel has returned. I'll give it another heating cycle and see.


Pauli

My DM16 exhibited this problem and I tried Michael's solution: baked in our over at around 80℃ for a couple of hours. I let it cool and the marks are gone. I've not powered it up yet but will soon.

I didn't know LCDs did this.


Pauli

Finally, acceptance of long integer arithmetic


Pauli

Why 52 bits when using binary reals? 53 should be possible.