The TI-84 calculator online works like a virtual graphing calculator for common algebra, trigonometry, statistics, and calculus tasks. You can use the calculator to enter expressions, graph equations, calculate values, and analyze data. Follow the steps below based on the type of calculation you need.

How to Perform Basic Calculations

Use the TI-84 online calculator for addition, subtraction, multiplication, division, percentages, and other arithmetic operations.

Example: Enter 25 - 8 + 15 and press ENTER to calculate the expression.

How to Solve Algebraic Equations

The TI-84 can help you solve algebraic problems and check equation solutions.

For example, to solve 2x + 5 = 15, enter the corresponding functions and find where the two sides have the same value.

Learn more: How to Solve Equations on TI-84.

How to Graph an Equation

The graphing function is one of the main uses of a TI-84 graphing calculator.

You can graph linear equations, quadratic functions, polynomial functions, exponential functions, logarithmic functions, and trigonometric functions.

How to Find the Zeros of a Function

A zero is an x-value where a function crosses or touches the x-axis.

The displayed x-value represents the numerical zero of the function.

How to Find the Intersection of Two Graphs

Use the intersection function to find where two equations have the same value.

This is especially useful for solving systems of equations graphically.

How to Calculate Trigonometric Functions

The TI-84 online calculator can calculate sine, cosine, tangent, and their inverse functions.

For example, sin(30°) gives 0.5 when the calculator is set to degree mode.

How to Calculate Inverse Trigonometric Functions

Use inverse trigonometric functions to find an angle from a known trigonometric ratio.

Inverse trigonometric functions are commonly used in right-triangle and geometry problems.

How to Work With Fractions

The TI-84 calculator can work with fractional values and convert between decimal and fraction forms.

For example, enter 3/4 to calculate the decimal value 0.75. Learn more: How to Put Fractions in TI-84.

How to Calculate Exponents and Powers

Use the exponent function for squares, cubes, and other powers.

For example, enter 5^2 to calculate 25.

How to Calculate Square Roots

The TI-84 online calculator can calculate square roots and other radical expressions.

For example, √144 returns 12.

How to Calculate Logarithms

Use the logarithm functions for logarithmic calculations.

For example, log(100) returns 2.

How to Calculate Statistics

The TI-84 graphing calculator provides tools for statistical calculations and data analysis.

You can use these functions to calculate values such as the mean, median, standard deviation, and regression statistics.

How to Calculate Mean, Median, and Standard Deviation

Use the one-variable statistics function to analyze a data set.

The results can include the mean, sum, minimum value, maximum value, and standard deviation.

How to Perform Linear Regression

Linear regression helps identify a straight-line relationship between two data sets.

How to Calculate Probability

Use the probability functions for permutations, combinations, and factorial calculations.

Common probability functions include factorial, permutation, and combination calculations.

How to Calculate a Derivative

The TI-84 can provide a numerical derivative at a selected x-value.

How to Calculate an Integral

The TI-84 can calculate a definite integral over a specified interval.

Related: How to Find Domain and Range on TI-84.