Function Grapher
Plot formula. Add up to 5 functions, use common math functions, and compare curves on one graph.
What this function grapher does
English SERP intent expects a fast graphing calculator: type an explicit, choose the x-range, and see the curve without a setup-heavy CAS workflow.
- Plot up to 5 explicit functions on the same axes.
- Use operators, constants, trigonometric functions, logarithms, roots, and exponentials.
- Adjust the x-range and point count when the graph needs more detail.
Supported expression style
x is the input variable and y is the plotted value returned by the expression.
Trigonometric functions use radians, so degree values should be converted before plotting.
| Input | Example |
|---|---|
| Power | |
| Square root | |
| Natural log | ln(x) |
| Base-10 log | log(x) |
| Absolute value | abs(x) |
Limits of this grapher
Undefined values are skipped, so logarithms outside their domain, square roots of negative values, and division by zero can create breaks in the line.
Frequently Asked Questions
Sources and References
- Free Online Function PlotterFooPlot
- Graphical Function ExplorerMath Open Reference
- FunctionWolfram MathWorld
Calculations are based on the listed reference sources. Links open in a new tab.
Related Tools
Enter two known points and a target x to estimate y on the line between them. The calculator flags extrapolation when x is outside the interval.
Find the nth term of an arithmetic sequence from the first term, common difference, and term number. The calculator also shows the substitution and a short sequence check.
Calculate the sum of the first n terms of an arithmetic series from the first term and common difference, or from the first and last terms.
Calculate a geometric sequence from the first term and common ratio, or from the first two terms. See the nth term, first n-term sum, and infinite sum when it converges.
Calculate an arithmetic sequence from the first term and common difference, or from the first two terms. See the nth term, the sum of the first terms, and the generated sequence.
Calculate percent of a number, what percent one number is of another, reverse percentage, percentage change, and add or subtract a percentage.