f_x(x, y) (partial derivative of f(x, y) with respect to x)
f_x_x(x, y), f_y_x(x, y), etc. (second partial derivatives)
integral(integrand, variable, lower, upper) (integral of integrand with respect to variable from lower to upper - e.g. for ∫01x2dx, type integral(x^2, x, 0, 1).)
Exercises
Create a new demo by following these steps:
Add intervals x and y, each from -1 to 1 in 20 steps.
Add variables a and b, each from -1 to 1 in 10 steps.
Add a function f(x, y), and type in any expression for it.
Add a 3D graph which shows the function graph of f(x, y) and plots the point (a, b, f(a, b)).
Create a demo which shows a graph of the function f (x) and also graphs the tangent line to f (x) at some point, x0.
Create a demo based on your favorite calculus topic.