Math Is Fun Forum

Ricky

Moderator

Registered: 2005-12-04

Posts: 3,791

Re: How do you find X?

By what do you mean it solved 87^87?  Surely you aren't doing it in C++.  Are you using mathimatica?

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"In the real world, this would be a problem.  But in mathematics, we can just define a place where this problem doesn't exist.  So we'll go ahead and do that now..."

krassi_holmz

Real Member

Registered: 2005-12-02

Posts: 1,905

Re: How do you find X?

Another copy of the command prompt:

Input y (y>1)(0 for quit):112349123746128387461279838741628934876129341237463924
The solution of x^x=1.12349e+053 is:34.4979.
Input y (y>1)(0 for quit):23452432324957346598724365234987623945623475238476239847623984762394862
348962349
The solution of x^x=2.34524e+079 is:47.3708.
Input y (y>1)(0 for quit):1102374123084712304821930487213498071234098732094712340123478901732081
The solution of x^x=1.10237e+069 is:42.4204.
Input y (y>1)(0 for quit):12039487123804981392847382905651208936410293874123098471238490382714809
23874019238741809238472189568293047213094
The solution of x^x=1.20395e+111 is:61.9786.
Input y (y>1)(0 for quit):12349812634906785610238470238109471324098465182394712380947238409734863
2840923174819028347120398416581372410938471234896358903471823409183409178236581293047128390472138
94
The solution of x^x=1.23498e+169 is:87.1489.
Input y (y>1)(0 for quit):19837469812374598123712894716328941723649127834537891263419283746192378
4126937845128374619234691287345617858912364198287346981273649182374612389476374573846132947123946
1273461923784519326493812874162398476397851374612384912347612398745713984612938764238914761937846
193246918
The solution of x^x=1.98375e+273 is:129.405.
Input y (y>1)(0 for quit):91236549123461289374612398451723469123874612987346123984762357894321034
7507236401823748941287346172389475197813264123784587346871346129847364982734512379847612348912734
6178235412783461298351364781923746129837643294872367461392841763489726349183247612839746328941723
64918237461298374612938476123795793649182387416923746127893476127983461932
The solution of x^x=1.#INF is:-1.#IND.
Input y (y>1)(0 for quit):

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IPBLE:  Increasing Performance By Lowering Expectations.

krassi_holmz

Real Member

Registered: 2005-12-02

Posts: 1,905

Re: How do you find X?

By what do you mean it solved 87^87?  Surely you aren't doing it in C++.  Are you using mathimatica?

No,no- with the c-program:
87^87=5472364007515806092890840962213361933646
5578673599554575543693463433762205742631692905
6636192499927745119880215695036404581245556681
7070274944448633167362192918054601383.
Entering this in my program gives 87.
Try it out!

Last edited by krassi_holmz (2006-06-02 05:01:46)

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IPBLE:  Increasing Performance By Lowering Expectations.