HP 33s 2–5, data, 12–14, Index–13, registers, accessing, 11–11, test menus, 13–7, statistics calculating, 11–4, no fractions, 5–2viewing, 11–11

effect of ‘, 2–5equation usage, 6–11 exchanging with variables, 3–6 exchanging X and Y, 2–4 filling with constant, 2–6

long calculations, 2–11 operation, 2–1, 2–4, 9–1 program calculations, 12–12 program input, 12–11 program output, 12–11 purpose, 2–1, 2–2 registers, 2–1

reviewing, 2–3, C–6 rolling, 2–3, C–6 separate from variables, 3–2 size limit, 2–4, 9–1 unaffected by VIEW, 12–14

stack lift. See stack default state, B–3 disabling, B–4 enabling, B–4 not affecting, B–4 operation, 2–4

standard deviations calculating, 11–6, 11–7 grouped data, 16–17 normal distribution, 16–11

standard–deviation menu, 11–6 statistical data. See statistics

registers

clearing, 1–6, 11–2 correcting, 11–2 entering, 11–1 initializing, 11–2 one–variable, 11–2 precision, 11–9

sums of variables, 11–10 two–variable, 11–2

statistics calculating, 11–4

curve fitting, 11–8, 16–1 distributions, 16–11 grouped data, 16–17 one–variable data, 11–2 operations, 11–1 two–variable data, 11–2

statistics menus, 11–1, 11–4 statistics registers. See statistical

dataaccessing, 11–11clearing, 1–6, 11–2, 11–11 contain summations, 11–1,11–10, 11–11 correcting data, 11–2 initializing, 11–2 memory, 11–11no fractions, 5–2 viewing, 11–11

STO, 3–2, 12–11 STO arithmetic, 3–4 STOP, 12–17 storage arithmetic, 3–4 subroutines. See routines

sums of statistical variables, 11–10 syntax (equations), 6–13, 6–18,

12–14

T

tangent (trig), 4–4, 9–3, A–2 temperaturesconverting units, 4–13 limits for calculator, A–2test menus, 13–7testing the calculator, A–4, A–5 time formats, 4–12

Index–13