Re: Find roots in a limited interval

• To: mathgroup at smc.vnet.net
• Subject: [mg86766] Re: Find roots in a limited interval
• From: dh <dh at metrohm.ch>
• Date: Thu, 20 Mar 2008 02:56:34 -0500 (EST)
• References: <frqpvr\$5be\$1@smc.vnet.net>

```
Hi Victor,

Solve does not take inequalities, but Reduce does. E.g.:

Reduce[Sin[x]/x==0&&0<x<10,x]

hope this helps, Daniel

viktor.albers at gmail.com wrote:

> Dear all,

>

> Being a Mathematica beginner I struggle to find a solution to a fairly

> simple problem. I have a function (superposition of several weighted

> sinc functions) which in principle has infinitely many roots.

>

> However I am interested only in lets say roots that are to be found

> within the limited interval between 0 and 5.

>

> I tried to define a system of inequalities of the type

>

> Solve[f[t] && t>0 && t<5, t] but no success.

> I played around with the function Reduce but did not have any success

> and I am also not sure if this is the right way forward.

>

> So the question: Is it possible to define an interval in Mathematica

> in which I am looking for the roots?

>

> Thank you for your time.

>

> Regards,

> Viktor

>

>

```

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