## How to make a sine wave graph

908 Views 5 Replies Latest reply: Oct 30, 2012 7:04 PM by YB24
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Oct 29, 2012 2:07 PM

Really stuck

I want to make sine graph and to be honest I am stuck, anyone help to put in simple step by step format for me please?

Thanks

iMac, iOS 6
• Level 6 (12,625 points)
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Oct 29, 2012 2:36 PM (in response to shaunbuk)

make a table with two columns:

Column A contains time (or angle)

Column B contains the sin functions that uses the value in the same row of column A

like:

Make the first row a header.

A2=ROW()*PI()/30

B2=SIN(A2)

select A2 and B2, then fill down by grabbing (click and hold) the little circle at the bottom right of the selection then drag dow as needed.

now select columns A and B, then select the Scatter Chart from the Chart men u in the tool bar.

• Level 7 (28,185 points)
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Oct 29, 2012 5:30 PM (in response to shaunbuk)

Shaun,

Functions can also be graphed with the built-in OS X application Grapher.

Jerry

• Level 6 (12,625 points)
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Oct 29, 2012 7:33 PM (in response to Jerrold Green1)

Like Jerry indicated you can use Grapher (/Applications/Utilities/Grapher):

• Level 2 (185 points)
Currently Being Moderated
Oct 30, 2012 7:04 PM (in response to Wayne Contello)

I agree : Grapher is the best to draw mathematical curves. For trigonometric functions the abscissa axis can be graduated in fractions of pi :  0   0,25pi   0,5pi  etc.

The accuracy of a Grapher curve remains good when zooming a part of the curve. That is not true using a list on a Numbers or Excel spreadsheet.

If you are a new user of Grapher : a lot of free documentation available on <http://y.barois.free.fr/grapher/> (French and English)

YB24

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