Calc84

Calc84 Calc84 is a student-friendly graphing calculator app for Android. Create parametric, polar, and standard function graphs with equation solving, Newton root finding, fractions, integrals, derivatives, and stats regression.

Calc84

Calc84 (Graphing Calculator Plus 84 / 83) is built for students who need a dependable way to handle tougher math. It makes both complex calculations and graphing tasks much simpler, helping you work through equations and visualize results quickly.

This advanced calculator focuses on creating a wide range of function graphs—such as parametric, polar, and standard functions. It also brings capabilities that feel familiar to the classic TI-83 style, including an equation solver, fraction calculations, and Newton’s root-finding.

Core Features

• Graphing support (83 Plus → 84 Plus): draw graphs for many types of functions, including parametric and polar.



• Scientific + graphing calculator: equation solver, Newton root finding, and fraction calculations (matching the familiar workflow of TI-83).
• Advanced tools (89 Plus → 84 Plus): integral calculations and symbolic derivatives.
• Statistics & regression: one-variable and two-variable statistics, plus linear, quadratic, and quartic regression.

Included Highlights

Built-in Documents

• Basic general calculations
• X & Y calculations and function intersections
• Find local maxima and minima
• Statistics & regression workflows
• Solve equations and polynomials
• Compute integral functions

Calculator Toolkit (Included)

• Universal Calculator app
• Mathematical display for clear input/output
• Complex number calculations
• Equation solver
• Edit & export expressions and results
• History tape view
• Basic operations: +, -, ×, ÷, ^, √, and more



• Advanced functions: Sin, Cos, Ln, E, and similar commands
• Y-variable & custom functions: F1, F2, F3
• Unit converter: 50 categories and 1000+ units
• Over 40 common constants
• Fractions plus degree/angle calculations
• Numeric integral & derivative calculations
• Dual themes (skins)

2D Graphing

• Simultaneous graphs
• Smooth zoom and graph transformations
• Support for parametric, polar, and sequences
• Intersections, min/max, and special points with TRACE

Statistics, Regression & Tests

• Create and edit lists
• One-variable and two-variable statistics
• Linear, quadratic, and cubic regression
• Regression types including logarithm, exponential, and power
• Test options such as PropZ, T, SampZ,T, Chi, and Interval

Matrices

• Create and edit matrices
• Basic matrix functions: Det, Dim, Fill, and more
• Advanced matrix functions: Inv, Ref, RRef, and more

Bottom Line

Calc84 is a complete scientific graphing calculator designed to help students solve complicated equations and handle statistical analysis with confidence. It’s straightforward to use, reliable for coursework, and a strong choice if you want accurate graphing and math tools in one place.