Type things like y = x^2 - 3, sin(2x), x^2 + y^2 = 25, (2, 3), or a = 2 to get a slider.
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Solve an equation for x
Finds every real solution between From and To. Any letter other than x needs a number (for example a = 2; x^2 = a).
Function
Blue: f. Green: f′ (slope). Orange: tangent line at the chosen x. The shaded area is the integral.