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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

POSTED BY: Lexie Tutwiler
Answer
6 months ago

The point is:

pt={Pi/6,f[Pi/6]}

It can be plotted with:

Point[pt]

Or probably:

Graphics[Point[pt]]
POSTED BY: David J M Park Jr
Answer
6 months ago

Thank you so much!

POSTED BY: Lexie Tutwiler
Answer
6 months ago

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!

POSTED BY: Mariusz Iwaniuk
Answer
6 months ago

Here is the Mariusz's plot from 0 to 2Pi with the point.

Attachments:
POSTED BY: Roger Wells
Answer
6 months ago

Group Abstract Group Abstract