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Thread: Calculating pi

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    Default Calculating pi

    Hi All,

    having some trouble with calculating pi from the below.

    Instaed of reading 3.14xxx it's giving me 3.28xxx instead. Not sure where i'm going wrong on the maths.

    double pi = 4.0*(1.0-(1.0/3.0)+(1.0/5.0)-(1.0/7.0)+(1.0/9.0)-(1.0/11.0)+(1.0/13.0));

    Thanks for any and all advice.

    CC.


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    Default Re: Calculating pi

    Perhaps you aren't including enough terms in the series. It looks like it would be a good application of a for loop to determine how many terms in the series are required, how quickly it converges, etc.

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    Default Re: Calculating pi

    Any reason you're not using Java's Math.PI?
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

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    Default Re: Calculating pi

    Quote Originally Posted by newbie View Post
    Any reason you're not using Java's Math.PI?
    Only on our second lecture thus far. Not reached that point yet.

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    Default Re: Calculating pi

    But note, the Math library does not touch into any OO principles etc. which you need to be aware of. It is essentially an utility class which is auto-imported into your classes via the java.lang package. If you do
    System.out.println(Math.PI);
    it will work.
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

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