       Re: How can I reduce the frequency of a sine wave tia sal22

• To: mathgroup at smc.vnet.net
• Subject: [mg104760] Re: How can I reduce the frequency of a sine wave tia sal22
• From: Bill Rowe <readnews at sbcglobal.net>
• Date: Sun, 8 Nov 2009 06:52:23 -0500 (EST)

```On 11/7/09 at 6:51 AM, ratulloch at gmail.com (Rick T) wrote:

>I have the example below which produces 10 cycles
>a = Sin[10 x]
>Plot[a, {x, 0, 2 Pi}]

>What Type of signal would I need to add/multiple/divide to reduce
>it's signal/frequency to 5 cycles?  I know I can just change the
>number 10 to 5 but I need to combine it with another signal.  what
>mathematical operation/signal do I need to use.

Reduce the factor multiplying x by 2. That is

Plot[Sin[5 x], {x, 0, 2 Pi}]

has 5 cycles

```

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