Function Grapher
../algebra/images/function-graph.js
Description
Function Grapher is a full featured Graphing Utility that supports graphing up to 5 functions together.
You can also save your work as a URL (website link).
Usage
To plot a function just type it into the function box.
Use "x" as the variable like this:
Examples:
- sin(x)
- 2x−3
- cos(x^2)
- (x−3)(x+3)
Zooming and Re-centering
To zoom, use the zoom slider. Left zooms in, right zooms out. When you let go of the slider it goes back to the middle so you can zoom more.
You can click-and-drag to move the graph around.
If you just click-and-release (without moving), then the spot you clicked on will be the new center
To reset the zoom to the original click on the Reset button.
Using "a" Values
There's a slider with "a =" on it. You can use "a" in your formula and then use the slider to change the value of "a" to see how it affects the graph.
Examples:
- x^a
- 2x−3a
- sin(ax)
All Functions
Operators
+
Addition operator
-
Subtraction operator
*
Multiplication operator
/
Division operator
^
Exponent (Power) operator
()
Parentheses (brackets)
Functions
sqrt
sin
cos
Cosine
tan
Tangent
asin
Inverse sine (arcsine)
acos
Inverse cosine (arccos)
atan
Inverse tangent (arctangent)
sinh
Hyperbolic sine
cosh
Hyperbolic cosine
tanh
Hyperbolic tangent
ln
The natural logarithm
log
The base-10 logarithm
abs
Absolute value (distance from zero)
sign
1 for positive, −1 for negative, and 0 for zero
round
round to nearest integer
largest integer not greater than the input value
smallest integer not less than the input value
fact
factorial function