Calculator Name  Description of Features (Pros)  Could be Better if (Cons)  Inequality Graphing?  Equation Formatting Examples 
 EXCELLENT online graphing calculator that can graph up to 7 functions at the same time. Adjustable scale, different color plots.   YES >, ≥, <, ≤  Use the carrot key ( ^ ) as the exponent key. 
Function Grapher  Graphs multiple plot in multiple colors, has zoom functions, and arrows to move the origin to get a better image of the graph.  No direct export to a graphical file format like JPG or GIF  YES >, ≥, <, ≤  Equation formatting: 3x+2 and x² ─1 is entered as x^2─1
NOTE: The asterisk ( * ) is the multiplication key and the carrot ( ^ ) as the exponent key.

Graphical Function Explorer  4plots  No background scale  YES >, ≥, <, ≤  Equation formatting: 3*x+5, 2/5*x9, x^2+4
NOTE: The asterisk ( * ) is the multiplication key and the carrot ( ^ ) is the exponent key.

 4plots; Scale autoadjusts; Finds intersection points; Plots points  XY background scale  YES >, ≥, <, ≤  Equation formatting: 3x+5, ─2x─3, and x²+1 is entered as x^2+1
NOTE: The carrot ( ^ ) is the exponent key.

Graphing Calculator  Up to 5plot simultaneously; has a cursor point tracker  Save graph as a *.PNG file format^{1}  NO  Equation formatting: 3x+2 and x²+1 is entered as x^2+1 NOTE: The asterisk ( * ) is the multiplication key and the carrot ( ^ ) is the exponent key. 
(Java)  Toggle grid background; Separate graph window;   NO  Equation formatting: 3x+2 and
x²+1 is entered as x^2+1 NOTE: The carrot ( ^ ) is the exponent key. 
Online 3D Function Grapher  3D, good for higher level math like Calculus; Rotatable  Only one graph at a time; 3D only, cannot opt for a 2D plot  NO  Equation formatting: 3*x+2 and
x²+1 is entered as x^2+1 NOTE: The asterisk ( * ) is the multiplication key and the carrot ( ^ ) is the exponent key. 
Grapher  Labelable; Exportable image;  Nomenclature for entering equations  NO  Equation formatting: 3*x+1 and x² must be entered as x*x
NOTE: The asterisk ( * ) is the multiplication key.

FooPlot  5 color plots simultaneously; Pass equations in URL to automatically plot graph; Saves a PDF file;   NO  
    