# Find a point on a plot?

GROUPS:
 I'm having trouble locating a point of a graph for example my question is plot f(x) = sinx which I was able to do but the next question is find f(Pi/ 6) which I am having trouble finding this point on the graph using mathematica. Please help
3 months ago
4 Replies
 The point is: pt={Pi/6,f[Pi/6]} It can be plotted with: Point[pt] Or probably: Graphics[Point[pt]] 
 Use Plot and Epilog: f[x_] := Sin[x]; Plot[f[x], {x, 0, Pi/4}, Epilog -> {PointSize[Medium], Point[{Pi/6, f[Pi/6]}]}] Have fun!