Acron RPN announces v3.0 BETA

[vanLudwig]

Here's the last layout I have laying around (though I'll probably make more in the future). It pretty much looks like the stock layout, but there's an extra page of buttons in the x! toolbar, and A LOT of toolbar buttons can be long-pressed for second functions. Look for the shaded upper-right corner of toolbar buttons to indicate they can be long-pressed. Almost all of the fixed buttons can be long-pressed too, so I decided not to shade those. I realize this is a bit overwhelming to use - I mainly designed it just so that I could test all the built in functionality.

factor -> Return the x-th prime number
mod -> PI(x) i.e. the number of primes less than or equal to x
gcd -> Euler Phi function

round -> rationalize(y, x)
iPart -> ceiling(x)
fPart -> floor(x)
|x| -> sign(x)

x^2 -> x^3
sqrt(x) -> cbrt(x)
1/x -> x^-1

C(y, x) -> multichoose(y, x)
delta% -> %T
x!! -> !x (double factorial and subfactorial)

Σx -> maximum x
Σx^2 -> minimum x
mean x -> median x
population standard dev -> sample standard dev

7 -> Toolbar of scientific constants
8 -> Toolbar of unit conversions. Long-press unit conversion button for reverse conversion
4 -> Toolbar of calculus / solver functions
5 -> Toolbar of TVM financial functions. Tap variables to assign them; long-press to solve for them

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