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Re: Help with map /@

  • To: mathgroup at smc.vnet.net
  • Subject: [mg128598] Re: Help with map /@
  • From: Bob Hanlon <hanlonr357 at gmail.com>
  • Date: Thu, 8 Nov 2012 02:10:46 -0500 (EST)
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  • References: <20121107055615.6E1DC684C@smc.vnet.net>

Ex = T1[x, y, z] + T2[x, y, z] + T3[x, y, z];

n = 1; Integrate[#, #[[n++]]] & /@ Ex

Integrate[T1[x, y, z], x] +
   Integrate[T2[x, y, z], y] +
   Integrate[T3[x, y, z], z]


Bob Hanlon


On Wed, Nov 7, 2012 at 10:19 AM, Hussain AlQahtani
<hussain.alqahtani at gmail.com> wrote:
> Dear Bob
> Thanks for the great reply. But what if Ex = T1[x,y,z]+T2[x,y,z]+T3[x,y,z];
>
> regards,
>
> HMQ
>
>
> On Wed, Nov 7, 2012 at 9:29 AM, Bob Hanlon <hanlonr357 at gmail.com> wrote:
>>
>> Ex = T1[x] + T2[y] + T3[z];
>>
>> Integrate[#, #[[-1]]] & /@ Ex
>>
>> Integrate[T1[x], x] +
>>    Integrate[T2[y], y] +
>>    Integrate[T3[z], z]
>>
>> Integrate[#, Cases[#, _Symbol, 1][[1]]] & /@ Ex
>>
>> Integrate[T1[x], x] +
>>    Integrate[T2[y], y] +
>>    Integrate[T3[z], z]
>>
>>
>> Bob Hanlon
>>
>>
>> On Wed, Nov 7, 2012 at 12:56 AM, KFUPM <hussain.alqahtani at gmail.com>
>> wrote:
>> > Dear All
>> >
>> > I have a this expression:
>> >
>> > Ex= T1[x]+T2[y]+T3[z];
>> >
>> > I want to integrate the first term with respect to x, the second w.r.t y
>> > and the third with respect to z and then sum them all. I want to use the map
>> > function (/@) or similar to do that for me automatically. Your help is
>> > really appreciated.
>> >
>> > HMQ
>> >
>
>
>
>
> --
> Hussain Al-Qahtani, Ph.D.
> Assistant Professor
>
> Department of Mechanical Engineering
> King Fahd University of Petroleum and Minerals
> P.O. Box 414 Dhahran, 31261
> Saudi Arabia
>
> 966-3-860-2846 (Office)
> 966-3-860-2949 (Fax)
>
>



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