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Online Graphing Calculators
 Calculator Name Description of Features (Pros) Could be Better if (Cons) Inequality Graphing? Equation Formatting Examples Calculator 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. 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─1NOTE: The asterisk ( * ) is the multiplication key and the carrot ( ^ ) as the exponent key. Graphical Function Explorer 4-plots No background scale YES>, ≥, <, ≤ Equation formatting:        3*x+5, 2/5*x-9, x^2+4NOTE: The asterisk ( * ) is the multiplication key and the carrot ( ^ ) is the exponent key. Graphing Calculator 4-plots; Scale auto-adjusts; Finds intersection points; Plots points X-Y background scale YES>, ≥, <, ≤ Equation formatting:        3x+5, ─2x─3, and    x²+1 is entered as x^2+1NOTE: The carrot ( ^ ) is the exponent key. Graphing Calculator Up to 5-plot simultaneously; has a cursor point tracker Save graph as a *.PNG file format1 NO Equation formatting:3x+2 andx²+1 is entered as x^2+1NOTE: The asterisk ( * ) is the multiplication key and the carrot ( ^ ) is the exponent key. GCalc(Java) Toggle grid background; Separate graph window; NO Equation formatting:3x+2 and   x²+1 is entered as x^2+1NOTE: The carrot ( ^ ) is the exponent key. Online 3-D Function Grapher 3-D, good for higher level math like Calculus; Rotatable Only one graph at a time;3-D only, cannot opt for a 2-D plot NO Equation formatting:3*x+2 and   x²+1 is entered as x^2+1NOTE: The asterisk ( * ) is the multiplication key and the carrot ( ^ ) is the exponent key. Grapher Label-able; Exportable image; Nomenclature for entering equations NO Equation formatting:        3*x+1 and  x² must be entered as x*xNOTE: The asterisk ( * ) is the multiplication key. FooPlot 5 color plots simultaneously; Pass equations in URL to automatically plot graph; Saves a PDF file; NO

1 *.PNG file format - Portable Network Graphics (PNG) is a bitmapped image format that employs lossless data compression. PNG was created to improve upon and replace GIF (Graphics Interchange Format) as an image-file format not requiring a patent license.  PNG files are become the go to file format for website designers. It has the image quality of JPEG, and even higher, in many cases its also a smaller file-size, and like GIF, it supports transparency, however with a much higher quality output.