There are **4** NRICH Mathematical resources connected to **Graphical calculators**, you may find related items under Information and Communications Technology.

Given probabilities of taking paths in a graph from each node, use matrix multiplication to find the probability of going from one vertex to another in 2 stages, or 3, or 4 or even 100.

Plot the graph of x^y = y^x in the first quadrant and explain its properties.

Sketch the graphs of y = sin x and y = tan x and some straight lines. Prove some inequalities.

Investigate the graphs of y = [1 + (x - t)^2][1 + (x + t^)2] as the parameter t varies.