TI-84 Plus CE Features

Function (Y=) Mode

Plot rectangular functions y = f(x). Up to 10 functions at once.

Parametric Mode

Graph 6 parametric pairs x(t), y(t) simultaneously.

Polar Mode

Plot 6 polar equations r = f(θ) with adjustable angle range.

Sequence Mode

Graph 3 recursively defined sequences. Time series, cobweb, and phase plots.

TRACE Function

Move a cursor along a graph to read exact coordinate values.

ZOOM Controls

ZBox, Zoom In, Zoom Out, ZStandard, ZTrig, ZDecimal, and more.

Graph-Table Split

View graph and value table simultaneously in split-screen mode.

CALC Menu

Find zeros, intersections, min/max, derivatives, and integrals from the graph.

Color Graphing

14 line colors and multiple line styles for easy function differentiation.

Shading

Shade regions above, below, or between functions using the Shade( command.

Equation Solver

Interactively solve any equation for any variable using numerical methods.

Polynomial Root Finder

Locate all real and complex roots of polynomials up to degree 10.

Simultaneous Equation Solver

Solve systems with up to 10 equations and 10 unknowns.

nDeriv(

Compute numerical derivative of a function at a given point.

fnInt(

Evaluate definite integrals numerically between specified bounds.

MathPrint™

Enter and display expressions in standard math notation (fractions, exponents).

Fraction Templates

Quick entry of n/d fractions that display and compute exactly.

Complex Numbers

Full support for a+bi complex arithmetic across all operations.

Conic Sections

Built-in Conics app graphs circles, ellipses, hyperbolas, and parabolas.

Inequality Graphing

Shade solution regions for single and system inequalities.

1-Var Stats

Mean, median, standard deviation, variance, quartiles, and range.

2-Var Stats

Correlation, covariance, and descriptive stats for paired data.

Linear Regression (LinReg)

y = ax + b and y = a + bx forms with r and r² values.

Quadratic Regression

Fit data to a quadratic polynomial with R² goodness-of-fit.

Cubic & Quartic Regression

Higher-order polynomial curve fitting for complex data patterns.

Exponential & Logarithmic

ExpReg, LnReg, and PwrReg for growth and power models.

Sinusoidal Regression

Fit periodic data with SinReg for wave and cycle analysis.

Logistic Regression

Fit S-curve models for bounded growth data.

Stat Plots

Scatter, XY-line, histogram, box-whisker, and normal probability plots.

Hypothesis Testing

10 tests including Z-Test, T-Test, 2-SampTTest, χ²-Test, and ANOVA.

Confidence Intervals

7 interval functions: ZInterval, TInterval, 2-SampZInt, and more.

Median-Median Line

Resistant regression line less sensitive to outliers than LinReg.

Matrix Editor

Define matrices up to 99×99 with the interactive editor.

Arithmetic Operations

Add, subtract, multiply, and scalar-multiply matrices.

Inverse ([A]⁻¹)

Compute the matrix inverse for square, non-singular matrices.

Determinant (det)

Evaluate the determinant of any square matrix.

Transpose ([A]ᵀ)

Flip rows and columns to transpose any matrix.

Reduced Row Echelon (rref)

Apply Gauss-Jordan elimination to solve linear systems.

Row Echelon (ref)

Apply Gaussian elimination to produce an upper triangular matrix.

Elementary Row Operations

rowSwap, row+, *row, and *row+ for step-by-step reduction.

Augment

Combine two matrices side-by-side into an augmented matrix.

Matrix-to-List

Convert matrix rows or columns into statistical lists.

Program Editor

Create and edit programs using the built-in keyboard and menu-driven input system.

Variables & Lists

Store values in named variables (A–Z, θ) and user-defined lists for up to 999 elements.

Control Flow

If/Then/Else, For(, While, Repeat, Lbl, Goto, and Menu( for branching logic.

I/O Commands

Input, Prompt, Disp, Output(, ClrHome for interactive program interfaces.

Drawing Commands

Draw points, lines, circles, and text directly on the graph screen.

String Handling

10 string variables, concatenation, and string-to-number conversion.

Trigonometry

sin, cos, tan and their inverses. Degrees, radians, and grads modes.

Hyperbolic Functions

sinh, cosh, tanh and their inverses for calculus and engineering.

Logarithms

Common log (log), natural log (ln), and arbitrary base logBASE(.

Powers & Roots

x², √, x³, ∛, xᵧ, ˣ√y, and e^x.

Number Theory

gcd(, lcm(, abs(, round(, floor(, ceiling(, int(, fPart(, iPart(.

Conversions

►Frac, ►Dec, ►DMS for fraction, decimal, and angle conversions.

Combinatorics

nCr (combinations), nPr (permutations), n! (factorial).

14-Digit Precision

Internal 14-digit accuracy displayed with 10 significant digits.