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Classic family

Classic Graphing 84 quick reference

Classic Graphing 84 is a full graphing calculator. You type expressions on the home screen, plot functions with Y=, explore them with TRACE and CALC, and keep data in lists and matrices. Menus are numbered, so you can press a number or move down and press enter.

Main screen: Press 2nd then mode (QUIT) to get back to the home screen. Pressing clear on a menu also backs out of it. · Shift layer: 2nd · Second layer: alpha

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Keys

y=
y=
Opens the Y= function editor.
2ndSTAT PLOT
Opens the statistics plot setup.
alphaF1
F1 shortcut. Not used on this machine.
window
window
Opens the WINDOW screen to set the graph view.
2ndTBLSET
Opens table setup (start, step, auto or ask).
alphaF2
F2 shortcut. Not used on this machine.
zoom
zoom
Opens the ZOOM menu of quick graph views.
2ndFORMAT
Opens graph format settings (grid, axes, labels).
alphaF3
F3 shortcut. Not used on this machine.
trace
trace
Moves a cursor along the graph and shows its coordinates.
2ndCALC
Opens CALCULATE: value, zero, min, max, intersect, dy/dx, integral.
alphaF4
F4 shortcut. Not used on this machine.
graph
graph
Draws the graph.
2ndTABLE
Shows the table of X and Y values.
alphaF5
F5 shortcut. Not used on this machine.
2nd
2nd
Next key uses the blue legend above it.
mode
mode
Opens the MODE settings screen.
2ndQUIT
QUIT: leaves the current screen and returns home.
del
del
Deletes the character or item at the cursor.
2ndINS
Turns insert mode on or off while typing.
◀
◀
Moves the cursor left.
▲
▲
Moves the cursor up, or scrolls back through earlier lines.
alpha
alpha
Next key types the green letter above it.
2ndA-LOCK
Alpha lock: keep typing letters until you press alpha again.
X,T,θ,n
X,T,θ,n
Types X (or T, θ, n in other graph modes).
2ndLINK
LINK. Not available yet.
stat
stat
Opens the STAT menu: edit lists, statistics, tests.
2ndLIST
Opens the LIST menu (names, operations, math).
▼
▼
Moves the cursor down, or scrolls forward through lines.
▶
▶
Moves the cursor right.
math
math
Opens the MATH menu: fractions, roots, NUM, complex, probability.
2ndTEST
Opens TEST: comparison signs and logic words.
alphaA
Types the letter A (store/recall variable A).
apps
apps
Opens the applications list.
2ndANGLE
Opens ANGLE: degree marks, DMS and polar conversions.
alphaB
Types the letter B (store/recall variable B).
prgm
prgm
Program menu. On the home screen: EXEC (run), EDIT and NEW (create). In the program editor: CTL commands (If, For, While, Menu…), I/O commands (Input, Prompt, Disp, getKey…) and EXEC to call another program.
2ndDRAW
Opens DRAW: ClrDraw, Line, Circle, Text, shading and points on the graph screen.
alphaC
Types the letter C (store/recall variable C).
vars
vars
Opens VARS: paste window, statistics and Y-VARS names.
2ndDISTR
Opens DISTR: probability distribution functions.
clear
clear
Clears the entry line, or backs out of a screen.
x⁻¹
x⁻¹
Reciprocal: raises the previous value to the power −1.
2ndMATRIX
Opens the MATRIX menu.
alphaD
Types the letter D (store/recall variable D).
sin
sin
Sine of an angle.
2ndsin⁻¹
Inverse sine (angle from a ratio).
alphaE
Types the letter E (store/recall variable E).
cos
cos
Cosine of an angle.
2ndcos⁻¹
Inverse cosine (angle from a ratio).
alphaF
Types the letter F (store/recall variable F).
tan
tan
Tangent of an angle.
2ndtan⁻¹
Inverse tangent (angle from a ratio).
alphaG
Types the letter G (store/recall variable G).
^
^
Raises to a power. Type the exponent after it.
2ndπ
Types the constant π.
alphaH
Types the letter H (store/recall variable H).
x²
x²
Squares the previous value.
2nd√
Square root.
alphaI
Types the letter I (store/recall variable I).
,
,
Separates items, like the two numbers in a function.
2ndEE
Types the scientific-notation E (times a power of ten).
alphaJ
Types the letter J (store/recall variable J).
(
(
Opens a bracket.
2nd{
Types a left curly brace for lists.
alphaK
Types the letter K (store/recall variable K).
)
)
Closes a bracket.
2nd}
Types a right curly brace for lists.
alphaL
Types the letter L (store/recall variable L).
÷
÷
Divides.
2nde
Types the constant e.
alphaM
Types the letter M (store/recall variable M).
log
log
Base-10 logarithm.
2nd10ˣ
Ten to a power (inverse of log).
alphaN
Types the letter N (store/recall variable N).
7
7
Types 7.
2ndu
Types the list-name letter u.
alphaO
Types the letter O (store/recall variable O).
8
8
Types 8.
2ndv
Types the list-name letter v.
alphaP
Types the letter P (store/recall variable P).
9
9
Types 9.
2ndw
Types the list-name letter w.
alphaQ
Types the letter Q (store/recall variable Q).
×
×
Multiplies.
2nd[
Types a left square bracket for matrices.
alphaR
Types the letter R (store/recall variable R).
ln
ln
Natural logarithm (base e).
2ndeˣ
e to a power (inverse of ln).
alphaS
Types the letter S (store/recall variable S).
4
4
Types 4.
2ndL4
Types list L4.
alphaT
Types the letter T (store/recall variable T).
5
5
Types 5.
2ndL5
Types list L5.
alphaU
Types the letter U (store/recall variable U).
6
6
Types 6.
2ndL6
Types list L6.
alphaV
Types the letter V (store/recall variable V).
−
−
Subtracts. Use (−) for a negative number.
2nd]
Types a right square bracket for matrices.
alphaW
Types the letter W (store/recall variable W).
sto→
sto→
Stores a value into a variable (the arrow).
2ndRCL
Recalls a variable or list into the entry line.
alphaX
Types the letter X (store/recall variable X).
1
1
Types 1.
2ndL1
Types list L1.
alphaY
Types the letter Y (store/recall variable Y).
2
2
Types 2.
2ndL2
Types list L2.
alphaZ
Types the letter Z (store/recall variable Z).
3
3
Types 3.
2ndL3
Types list L3.
alphaθ
Types the angle letter θ.
+
+
Adds.
2ndMEM
Opens the MEMORY menu: about, clear entries, reset.
alpha"
Types a double quote mark.
on
on
Wakes the calculator. Always on in this app.
2ndOFF
OFF. Not available yet.
0
0
Types 0.
2ndCATALOG
Opens the CATALOG of all functions and commands.
alpha␣
Types a space.
.
.
Decimal point.
2ndi
Types the imaginary unit i.
alpha:
Types a colon.
(−)
(−)
Negative sign for a number. Not the same as subtract.
2ndANS
Types ANS, the last answer.
alpha?
Types a question mark.
enter
enter
Evaluates the line, or picks a menu item.
2ndENTRY
ENTRY: brings back the previous line to edit.
alphaSOLVE
SOLVE: opens the equation solver.

Menus and screens

MATH
MATH: Frac, Dec, cube, cube root, x-th root, fMin and fMax. NUM: abs, round, iPart, fPart, int, min, max. CMPLX: conj, real, imag, angle, abs, Rect, Polar. PROB: random numbers, nPr, nCr, factorial. FRAC: n/d and Frac/Dec switch.
Y= editor
Seven function slots Y1 to Y7. Type a rule in terms of X, and turn a slot on or off at its equals sign. Plot1 to Plot3 switch statistics plots.
WINDOW
Sets the viewing rectangle: Xmin, Xmax, Xscl, Ymin, Ymax, Yscl and Xres. Change it when your graph is off screen.
ZOOM
Quick views: ZBox, Zoom In, Zoom Out, ZDecimal, ZSquare, ZStandard, ZTrig and more. The MEMORY tab saves and recalls windows.
TRACE and CALCULATE
TRACE walks along a graph. 2nd trace opens CALCULATE: value, zero, minimum, maximum, intersect, dy/dx and the integral.
TABLE and TBLSET
2nd graph shows a table of X and Y values. 2nd window sets the start, step and Auto/Ask modes.
FORMAT
2nd zoom sets graph looks: grid, axes, coordinates, labels and expression display.
STAT
EDIT opens the list editor and has sort and clear tools. CALC has one- and two-variable stats and regressions. TESTS has hypothesis tests and intervals.
STAT PLOT
2nd y= turns on Plot1 to Plot3 and picks the plot type and which lists to use.
LIST
2nd stat: NAMES (L1 to L6), OPS (sort, dim, seq, cumSum) and MATH (min, max, mean, median, sum, stdDev).
MATRIX
2nd x⁻¹: NAMES to pick a matrix, MATH (det, transpose, identity, augment and more) and EDIT to fill in a matrix.
DISTR
2nd vars: probability tools such as normalpdf, normalcdf, invNorm, tpdf, tcdf and more. DRAW shades areas under curves.
TEST and LOGIC
2nd math: comparison signs (=, ≠, <, >, ≤, ≥) and logic words and, or, xor, not.
ANGLE
2nd apps: degree, minute and radian marks, convert to DMS, and rectangular/polar conversions.
VARS
Pastes window, zoom, statistics and table variables, and the Y-VARS function names.
MODE
Normal/Sci/Eng, Float or fixed decimals, Radian or Degree, Func/Par/Pol graphing, connected or dot, real or complex, fraction type and answer style.
MEMORY
2nd + opens About, Clear Entries, ClrAllLists and Reset.
CATALOG
2nd 0 lists every function and command in alphabetical order. Press enter to paste one.
EQUATION SOLVER
alpha enter (SOLVE) opens the numeric solver. Enter an equation equal to 0, give a guess, then solve.
Program menu
PRGM on the home screen: EXEC runs a program, EDIT opens one in the editor, NEW creates one (name up to 8 characters). Inside the editor PRGM opens the command menus instead: CTL (If, Then, Else, For, While, Repeat, End, Lbl, Goto, Menu, Stop), I/O (Input, Prompt, Disp, Output, getKey, ClrHome) and EXEC (call another program). ON stops a running program.

Modes and settings

Angle
Radian or Degree. Trig answers depend on it, so check it first.
Display format
Normal, Sci or Eng for big and small numbers.
Decimals
Float shows as many digits as needed. 0 to 9 fixes the number of decimals.
Graph type
Func graphs y of x. Par and Pol are for parametric and polar graphs.
Connected or Dot
Draw a graph as a joined line or as separate dots.
Real or complex
Real, a+bi or re^θi. Real mode gives an error for roots of negative numbers.
Fraction type and Answers
n/d or mixed Un/d, and Auto, Dec or Frac answers.

Tips

Guides for this calculator