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Plot mathematical functions on an interactive coordinate plane. Graph multiple functions simultaneously with adjustable viewing windows and color coding.
A graphing calculator is a tool that plots mathematical functions on a coordinate plane, allowing visual analysis of equations, their roots, extrema, and intersections.
x**2x squaredMath.sin(x)Sine of xMath.cos(x)Cosine of xMath.sqrt(x)Square rootMath.abs(x)Absolute valueMath.log(x)Natural logMath.exp(x)e^xMath.PIπ constantFormula
y = f(x)x = Independent variable (horizontal axis)
y = Dependent variable (vertical axis)
f = The function being graphed
Worked Example
Graph y = x² − 4
Did you know? The first graphing calculator, the Casio fx-7000G, was released in 1985 and could plot functions on a 96×64 pixel LCD screen (source: Casio Computer Co.).
Sources
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