Graphing Calculator

Use standard mathematical notation with a few conventions: write multiplication explicitly as * (e.g. 2*x instead of 2x), use ^ for exponents (e.g. x^3), and call functions by name such as sin(x), cos(x), tan(x), sqrt(x), log(x), and abs(x). Parentheses are respected in the usual order-of-operations way.

Yes. You can enter up to four functions simultaneously — f(x), g(x), h(x), and p(x). Each is rendered in a distinct color so you can clearly identify intersections and compare behaviors across the same viewing window.

Set the X-Axis Min, X-Axis Max, Y-Axis Min, and Y-Axis Max fields to control exactly which portion of the coordinate plane is displayed. For example, to zoom into the origin area use -5 to 5 on both axes; to see large-scale behavior try -100 to 100.

Increase the Resolution setting to High (500 points). A higher sample count means the calculator evaluates your function at more x-values, producing a smoother curve. This is especially noticeable for rapidly oscillating functions like sin(10*x).

Plot both functions and visually inspect the chart for crossing points. You can also check the Sample Values Table — look for rows where f(x) and g(x) are equal or very close in value. Narrowing your x-axis range around the suspected intersection gives more precise sample values.

The calculator will skip that particular function and still plot any valid ones. Points where the function is undefined (such as division by zero or log of a negative number) are automatically excluded from the chart — the curve simply has a gap at those x-values.

Absolutely. Supported built-in functions include sin, cos, tan, asin, acos, atan, sinh, cosh, tanh, sqrt, log (base-10), ln (natural log), exp, abs, floor, ceil, and round. Use them directly in your expression — for example, ln(x+1) or sin(x)/x.

Yes. It handles polynomial, rational, trigonometric, exponential, and logarithmic functions — covering topics from pre-algebra through calculus. It is useful for homework, exam prep, and exploring function properties like symmetry, periodicity, and asymptotes.