one-key

+ - * /
nchange sign
yy^x
qsquare
iinverse (1/x)
!factorial
mstore in free mem
zswitch Memory
wswap x ⇔ y
xlastx
↑ ↓scroll stack
spaceselect yellow box
uundo
ddeg/rad
ppi
F5reset

two-key

a algebra power, exp, ln, 10log, root, gonio,
mod, gcd, lcm
t statistics avg, dev, sum, cov, corr
comb, perm, rand
f finance cagr, annuity
l cashflow npv, irr
g constants physical constants
v convert convert units

s store 0...9 a...j
r recall 0...9 a...j
c clear/copy x, stack, mem, hist, all
o notation #dec, norm, sci, eng, fxd, comma

h help