RE: Findroot

Jacques Gélinas on Wed, 09 May 2018 01:20:06 +0200

RE: Findroot

To: "pari-users@pari.math.u-bordeaux.fr" <pari-users@pari.math.u-bordeaux.fr>
Subject: RE: Findroot
From: Jacques Gélinas <jacquesg00@hotmail.com>
Date: Tue, 8 May 2018 23:20:01 +0000
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Thread-topic: Findroot

Try ?? solve

for example solve(x=1,2,cos(x))

or solve(x=-1,1,x-cos(x))

You can use \p100 to get 100 digits.

Jacques Gélinas

De : Georges Nassif <georgesnassif7@gmail.com>
Envoyé : 8 mai 2018 18:27
À : pari-users@pari.math.u-bordeaux.fr
Objet : Findroot

Hello,

Is there a function in PARI library which is equivalent to Findroot in Mathematica?

For example:

FindRoot[Cos[x] == x, {x, 0}]

will find a solution to cos(x)=x near x=0

Thank you in advance,

Georges

References:
- Findroot
  - From: Georges Nassif <georgesnassif7@gmail.com>