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posted by on .

you are right the question is exactly like this... can you help me for this question.... thanks

Write a MAIN function and a FUNCTION to compute the sum of the below series.

((-1)^(n+1)*n!)/(n^n) (from n=1 to infinity)

Within the MAIN function:
. Read a variable EPSILON of type DOUBLE (desired accuracy) from
the standard input.
EPSILON is an extremely small positive number which can be anything
between 1E-06 (10^(-6)) and 1E-12 (10^(-12)).
. EPSILON value will be passed to the FUNCTION as an argument.
Within the FUNCTION:
. In a do-while loop:
. Continue adding up the terms until |Sn+1 - Sn| < EPSILON.
. Sn is the sum of the first n-terms.
. Sn+1 is the sum of the first (n+1)-terms.
When the desired accuracy EPSILON is reached print the SUM and the number
of TERMS added to the sum.

  • C++ - ,

    Your teacher's instruction ressemble very much a pseudocode. Just transcribe and start coding.

    Can you propose a pseudocode, or actual coding so that we have a starting point?

  • C++ - ,

    sir. ý don't understand anything.. ý need answer in c program. and the program should to run...

  • C++ - ,

    Here's a sample C-code template for you to start with.
    C++ would be slightly different
    You just have to add in your own code.
    If you have no idea where to start, review your teacher's notes, or do the best you can.

    #include <stdio.h>
    #include <stdlib.h>
    #include <string.h>
    int main()

    printf("Hello World!\n");

  • C++ - ,

    ý am sorry but. you can't do all this question??? I DON'T KNOW THÝS PROGRAM... :S:S

  • C++ - ,

    I have done this whole program. I have even showed you the results of the (wrong) series to show that the question was wrong.

    However, I am sorry that I should not post my program. I can help you get there, to make sure it works, if you show efforts on your part. Your teacher gave you this assignment so that you can learn. If you take my program ans submit as your own work, it would be plagiary, and worse, you haven't learned anything.

    If you want to achieve anything close to writing a program, there is no other way than to write it and learn from mistakes. This is why compilers are there to check your program for obvious mistakes. We're here to help you if you cannot figure out the mistakes.

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