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Demonstrates the use of PHP to dynamically generate images

Enter an expression involving the variable "x" in the space below (e.g. sin(x)*x). Also enter a range of x values over which you would like the expression plotted (e.g. 0 to 10). You may use most common mathematical functions (trigonometric, logarithmic, exponential, etc.) in your expression. Use the function pow(x,n) to express x raised to the power n.

y = from x = to x =