Function Grapher and Calculator
Description ::
All Functions
Description
Function Grapher is a full featured Graphing Utility that supports graphing two functions together. It has the unique feature that you can 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, or choose your own letter, then press the Plot button.
Examples:
 sin(x)
 2x3
 cos(x^2)
 (x3)(x+3)
You can use the "Calculate" button to see how your formula has been interpreted.
Zooming and Recentering
To zoom into an area, select an area with the mouse (click, hold down and drag, then release). The area you selected will be the new bounds.
This will result in the x and y scales being different. If you just clickandrelease (without creating a rectangle), then the spot you clicked on will be the new center
You can zoom out using the Out 2X or Out 10x button.
To reset the zoom to the original bounds click on the Reset button.
Using "a" Values
There is 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.
Note how I used a*x to multiply a and x. If I used ax (or xa) the program just gets confused.
You can change the smallest and largest value of "a" by changing the numbers at the start end end of the slider.
All Functions
Operators

+ 
Addition operator 

 
Subtraction operator 

* 
Multiplication operator 

/ 
Division operator 

^ 
Exponent (Power) operator 
Functions

sqrt 
Square Root of a value or expression. 

sin 
sine of a value or expression 

cos 
cosine of a value or expression 

tan 
tangent of a value or expression 

asin 
inverse sine (arcsine) of a value or expression 

acos 
inverse cosine (arccos) of a value or expression 

atan 
inverse tangent (arctangent) of a value or expression 

sinh 
Hyperbolic inverse sine (arcsine) of a value or expression 

cosh 
Hyperbolic inverse cosine (arccos) of a value or expression 

tanh 
Hyperbolic inverse tangent (arctangent) of a value or expression 

exp 
e (the Euler Constant) raised to the power of a value or expression 

ln 
The natural logarithm of a value or expression 

log 
The base10 logarithm of a value or expression 

floor 
Returns the largest (closest to positive infinity) value that is not greater than the argument and is equal to a mathematical integer. 

ceil 
Returns the smallest (closest to negative infinity) value that is not less than the argument and is equal to a mathematical integer. 

abs 
Absolute value (distance from zero) of a value or expression 

sign 
Sign (+1 or 1) of a value or expression 



Constants

pi 
The constant π (3.141592654...) 

e 
The Euler constant (2.71828...), the base for the natural logarithm 
