The plot2D() can plot funtion, equation, derivative, integral, polar plot, parametric plot, animation. The independent variable must be typed as x for evaluation. The time variable must be typed as t.
Complex calculation must be converted to complex operator by tocomplex() before calculation and plot.
for animation, input sin(x), then tick the auto Axis: button;
or add the time t variable, input sin(x-t), then click the auto t: checkbox;
or add the timer(t) function and change animation speed by the different t value, input sin(x-timer(t))