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  4. 1000!

1000!

Scheduled Pinned Locked Moved C#
csharphelp
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  • P Professor Sharada Ulhas

    rockxyuenmandem! when i hear of ur cheating i cried loudly. i not want my student to cheat on cpian but u have failed me u monkey turd! now i want to die

    Sincelery yours, Computer Information conSciences Professor and grader, Sharada Ulhas

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    Sean Michael Murphy
    wrote on last edited by
    #13

    Professor Sharada Ulhas wrote:

    Sincelery yours, Computer Information conSciences Professor and grader, Sharada Ulhas

    Professor? If this is an example of an assignment at your university, you may want to put a "stop" on that tuition cheque... Share and enjoy. Sean

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    • A albCode

      int i,f; f=1; string factorial=""; for (i=1; i<=1000;i++) { f= f*i; factorial = f.ToString(); //additional /*if(i==33) { break; } */ } this.label1.Text = factorial; but u can get factorial until 33 otherwise 1000! gives u result 0 (zero) _____________________ Proud to be Albanian _____________________

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      Dave Kreskowiak
      wrote on last edited by
      #14

      Congratulations!! You just did his homework for him!! And WOW, he didn't learn a damn thing!! :laugh: RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

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      • S spin vector

        You need to use Stirling's formula, which asymptotically goes as n^n e^(-n). I'd prob take the log of this as a first calculation, or do something to avoid the n^n.

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        Steve Pullan
        wrote on last edited by
        #15

        nyc_user wrote:

        You need to use Stirling's formula,

        Yes but... this is an approximation (admittedly with an error approaching 1/n^2 for n=1000) and won't be good enough if the exact value is required. ...Steve 1. quod erat demonstrandum 2. "Give a man a fish and you've fed him for a day. Teach him how to fish and you've fed him for life." I read that somewhere once :-) (Translation: I'll show you the way, but not write the code for you.)

        S 1 Reply Last reply
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        • A albCode

          int i,f; f=1; string factorial=""; for (i=1; i<=1000;i++) { f= f*i; factorial = f.ToString(); //additional /*if(i==33) { break; } */ } this.label1.Text = factorial; but u can get factorial until 33 otherwise 1000! gives u result 0 (zero) _____________________ Proud to be Albanian _____________________

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          Steve Pullan
          wrote on last edited by
          #16

          albCode wrote:

          but u can get factorial until 33 otherwise 1000! gives u result 0 (zero)

          The problem is that you've defined f as an int. You'll need to use a different data type. ...Steve 1. quod erat demonstrandum 2. "Give a man a fish and you've fed him for a day. Teach him how to fish and you've fed him for life." I read that somewhere once :-) (Translation: I'll show you the way, but not write the code for you.)

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          • S Steve Pullan

            nyc_user wrote:

            You need to use Stirling's formula,

            Yes but... this is an approximation (admittedly with an error approaching 1/n^2 for n=1000) and won't be good enough if the exact value is required. ...Steve 1. quod erat demonstrandum 2. "Give a man a fish and you've fed him for a day. Teach him how to fish and you've fed him for life." I read that somewhere once :-) (Translation: I'll show you the way, but not write the code for you.)

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            S Offline
            spin vector
            wrote on last edited by
            #17

            That's virtually an absurd comment. The guy didn't give a type, so I might guess a double (or long would be better). Moreover, the leading coefficietly are easily googlable. If he wants all the digits down to the decimal point then that's a completely different problem. ;P

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            • S spin vector

              That's virtually an absurd comment. The guy didn't give a type, so I might guess a double (or long would be better). Moreover, the leading coefficietly are easily googlable. If he wants all the digits down to the decimal point then that's a completely different problem. ;P

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              Steve Pullan
              wrote on last edited by
              #18

              nyc_user wrote:

              That's virtually an absurd comment.

              Absurd? Hmmm....

              nyc_user wrote:

              The guy didn't give a type, so I might guess a double (or long would be better).

              The answer to 1000! is a whole number. So my comment still stands. Stirling's formula approximates the actual value (albeit a very good approximation) - there is some error involved.

              nyc_user wrote:

              If he wants all the digits down to the decimal point then that's a completely different problem.

              Yep I agree, however since he has not given us any more information on the assignment question, this discussion is academic. :) ...Steve 1. quod erat demonstrandum 2. "Give a man a fish and you've fed him for a day. Teach him how to fish and you've fed him for life." I read that somewhere once :-) (Translation: I'll show you the way, but not write the code for you.)

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              • S Steve Pullan

                nyc_user wrote:

                That's virtually an absurd comment.

                Absurd? Hmmm....

                nyc_user wrote:

                The guy didn't give a type, so I might guess a double (or long would be better).

                The answer to 1000! is a whole number. So my comment still stands. Stirling's formula approximates the actual value (albeit a very good approximation) - there is some error involved.

                nyc_user wrote:

                If he wants all the digits down to the decimal point then that's a completely different problem.

                Yep I agree, however since he has not given us any more information on the assignment question, this discussion is academic. :) ...Steve 1. quod erat demonstrandum 2. "Give a man a fish and you've fed him for a day. Teach him how to fish and you've fed him for life." I read that somewhere once :-) (Translation: I'll show you the way, but not write the code for you.)

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                Steini kallinn
                wrote on last edited by
                #19

                Acording to the answer generated from Maple 10, I don't think a small litle program is going to solve this...

                1000! =
                402387260077093773543702433923003985719374864210714632543799910429938512398
                629020592044208486969404800479988610197196058631666872994808558901323829669
                944590997424504087073759918823627727188732519779505950995276120874975462497
                043601418278094646496291056393887437886487337119181045825783647849977012476
                632889835955735432513185323958463075557409114262417474349347553428646576611
                667797396668820291207379143853719588249808126867838374559731746136085379534
                524221586593201928090878297308431392844403281231558611036976801357304216168
                747609675871348312025478589320767169132448426236131412508780208000261683151
                027341827977704784635868170164365024153691398281264810213092761244896359928
                705114964975419909342221566832572080821333186116811553615836546984046708975
                602900950537616475847728421889679646244945160765353408198901385442487984959
                953319101723355556602139450399736280750137837615307127761926849034352625200
                015888535147331611702103968175921510907788019393178114194545257223865541461
                062892187960223838971476088506276862967146674697562911234082439208160153780
                889893964518263243671616762179168909779911903754031274622289988005195444414
                282012187361745992642956581746628302955570299024324153181617210465832036786
                906117260158783520751516284225540265170483304226143974286933061690897968482
                590125458327168226458066526769958652682272807075781391858178889652208164348
                344825993266043367660176999612831860788386150279465955131156552036093988180
                612138558600301435694527224206344631797460594682573103790084024432438465657
                245014402821885252470935190620929023136493273497565513958720559654228749774
                011413346962715422845862377387538230483865688976461927383814900140767310446
                640259899490222221765904339901886018566526485061799702356193897017860040811
                889729918311021171229845901641921068884387121855646124960798722908519296819
                372388642614839657382291123125024186649353143970137428531926649875337218940
                694281434118520158014123344828015051399694290153483077644569099073152433278
                288269864602789864321139083506217095002597389863554277196742822248757586765
                752344220207573630569498825087968928162753848863396909959826280956121450994
                871701244516461260379029309120889086942028510640182154399457156805941872748
                998094254742173582401063677404595741785160829230135358081840096996372524230
                560855903700624271243416909004153690105933983835777939410970027753472000000
                000000000000000000000000000000000000000000000

                S 1 Reply Last reply
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                • S Steve Pullan

                  albCode wrote:

                  but u can get factorial until 33 otherwise 1000! gives u result 0 (zero)

                  The problem is that you've defined f as an int. You'll need to use a different data type. ...Steve 1. quod erat demonstrandum 2. "Give a man a fish and you've fed him for a day. Teach him how to fish and you've fed him for life." I read that somewhere once :-) (Translation: I'll show you the way, but not write the code for you.)

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                  albCode
                  wrote on last edited by
                  #20

                  "u have right" (maybe) _____________________ Proud to be Albanian _____________________

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                  • E eggie5

                    HAAHA are you indian? /\ |_ E X E GG

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                    albCode
                    wrote on last edited by
                    #21

                    Dude if u asking me do i am indian. the answer is false. I am Europen(Kosovo-Albanian) ;) _____________________ Proud to be Albanian _____________________

                    1 Reply Last reply
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                    • S Sean Michael Murphy

                      Professor Sharada Ulhas wrote:

                      Sincelery yours, Computer Information conSciences Professor and grader, Sharada Ulhas

                      Professor? If this is an example of an assignment at your university, you may want to put a "stop" on that tuition cheque... Share and enjoy. Sean

                      P Offline
                      P Offline
                      prrusa
                      wrote on last edited by
                      #22

                      >If this is an example of an assignment at your university, you may want to >put a "stop" on that tuition cheque... Could you please elaborate? I'm dying to find out how you came to this conclusion from the info you had? Please hurry with your reply, we may have stumbled upon a savant.

                      1 Reply Last reply
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                      • S Steini kallinn

                        Acording to the answer generated from Maple 10, I don't think a small litle program is going to solve this...

                        1000! =
                        402387260077093773543702433923003985719374864210714632543799910429938512398
                        629020592044208486969404800479988610197196058631666872994808558901323829669
                        944590997424504087073759918823627727188732519779505950995276120874975462497
                        043601418278094646496291056393887437886487337119181045825783647849977012476
                        632889835955735432513185323958463075557409114262417474349347553428646576611
                        667797396668820291207379143853719588249808126867838374559731746136085379534
                        524221586593201928090878297308431392844403281231558611036976801357304216168
                        747609675871348312025478589320767169132448426236131412508780208000261683151
                        027341827977704784635868170164365024153691398281264810213092761244896359928
                        705114964975419909342221566832572080821333186116811553615836546984046708975
                        602900950537616475847728421889679646244945160765353408198901385442487984959
                        953319101723355556602139450399736280750137837615307127761926849034352625200
                        015888535147331611702103968175921510907788019393178114194545257223865541461
                        062892187960223838971476088506276862967146674697562911234082439208160153780
                        889893964518263243671616762179168909779911903754031274622289988005195444414
                        282012187361745992642956581746628302955570299024324153181617210465832036786
                        906117260158783520751516284225540265170483304226143974286933061690897968482
                        590125458327168226458066526769958652682272807075781391858178889652208164348
                        344825993266043367660176999612831860788386150279465955131156552036093988180
                        612138558600301435694527224206344631797460594682573103790084024432438465657
                        245014402821885252470935190620929023136493273497565513958720559654228749774
                        011413346962715422845862377387538230483865688976461927383814900140767310446
                        640259899490222221765904339901886018566526485061799702356193897017860040811
                        889729918311021171229845901641921068884387121855646124960798722908519296819
                        372388642614839657382291123125024186649353143970137428531926649875337218940
                        694281434118520158014123344828015051399694290153483077644569099073152433278
                        288269864602789864321139083506217095002597389863554277196742822248757586765
                        752344220207573630569498825087968928162753848863396909959826280956121450994
                        871701244516461260379029309120889086942028510640182154399457156805941872748
                        998094254742173582401063677404595741785160829230135358081840096996372524230
                        560855903700624271243416909004153690105933983835777939410970027753472000000
                        000000000000000000000000000000000000000000000

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                        S Offline
                        Steve Pullan
                        wrote on last edited by
                        #23

                        Good one! My comments really are academic :-) ...Steve 1. quod erat demonstrandum 2. "Give a man a fish and you've fed him for a day. Teach him how to fish and you've fed him for life." I read that somewhere once :-) (Translation: I'll show you the way, but not write the code for you.)

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