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BigInteger implementation C++ 12 Years Ago by subith86 … for this. 1. std::string private member will hold the BigInteger in the form of string. 2. Addition : [INDENT] a.…gt; #include <string> #include <sstream> class BigInteger { private: //////////////////////////////////////////////////////////////////////// // The big integer will be stored as a … BigInteger - modpow() 15 Years Ago by vsha041 …/1.4.2/docs/api/java/math/BigInteger.html#modPow%28java.math.BigInteger,%20java.math.BigInteger%29"]http://java.sun.com/j2se…/1.4.2/docs/api/java/math/BigInteger.html#modPow%28java.math.BigInteger,%20java.math.BigInteger%29[/URL] It allows us to answer… Re: BigInteger isProbablePrime 12 Years Ago by Jaggs …void main(String[] args) { BigInteger num1 = new BigInteger("3511"); isPrime(num1); BigInteger num2 = new BigInteger("3512"); isPrime(num2);… } static void isPrime(BigInteger bi) { if (bi.… Re: BigInteger isProbablePrime 12 Years Ago by softDeveloper … number. I've tried a Fermat's test: [CODE] while (!(BigInteger.ONE.compareTo(b) <= 0 && b.compareTo(n… with the value '1' I always get this 'expResult.equals(BigInteger.ONE)' as true considering it as not composite and possible… BigInteger isProbablePrime 12 Years Ago by softDeveloper Hi all, I'm checking for primality in BigInteger type. I'm using isProbablePrime with certainty 15. I would like to know how to test if a BigInteger is really a prime number. Thanks in advance. Re: BigInteger Limit 10 Years Ago by Labdabeta … decimal digits. As such I would not be surprised if BigInteger COULD calculate it. The thing is that if you start… longer than the age of the earth to compute. Obviously BigInteger frankly will be unable to deal with this, and even….org/list/2013/06/?page=1) and at that point BigInteger probably will be too slow for the task at hand… Re: BigInteger Limit 10 Years Ago by JamesCherrill The API shows the nuber of bits in a BigInteger to be both set and returned as an int, so … 50! is less than 300 bits - a trivial size for BigInteger. BigInteger Limit 10 Years Ago by Kuroshi The question is pretty straightforward, does BigInteger have a limit? From what I know it is only limited to the amount of memory available on the system, nothing else. This question arose when my instructor told me that one could not calculate 50! using BigIntegers, which I believe one can. I would appreciate an answer. Thank you. Re: BigInteger? 13 Years Ago by Momerath Does your project include a reference to the System.Numerics.DLL? Do you put "using System.Numerics;" at the top of you file? I have no issues accessing the BigInteger class with VS 2010. Summation Program with BigInteger Rational Class 10 Years Ago by thewayoftheduck …); //create BigInteger numerator1 BigInteger numerator1 = new BigInteger("1"); //create BigInteger denominator1 BigInteger denominator1 = new BigInteger("2"); //create BigInteger numerator2 BigInteger numerator2 = new BigInteger("99… Re: Operations using BigInteger operations 14 Years Ago by chaospie …: [code] public static BigInteger factorial( int n ) { BigInteger factorial = new BigInteger( "1" ); BigInteger temp; for ( int …i = 1; i <= n; i++ ) { temp = new BigInteger( Integer.toString( i ) ); factorial = factorial.multiply( temp ); } return … Re: Operations using BigInteger operations 14 Years Ago by chaospie … a String because the constructor for [icode]BigInteger[/icode] takes a String representation of a number. … takes an int, and turns it into a [icode]BigInteger[/icode]. [code] // This works, it turns i …String, which is what one of the BigInteger constructors takes int num = 1; BigInteger test = new BigInteger( Integer.toString( num ) ); //… A function that returns a BigInteger 14 Years Ago by iamsmooth … my functions has to be: "public static BigInteger fNumberRoutes( int n, int m )" So…29: cannot find symbol symbol : class BigInteger location: class CountRoutes2 public static BigInteger fNumberRoutes( int n, int m ){… Maybe I don't completely understand what a BigInteger is, but I copied the assignment's signature… Re: A function that returns a BigInteger 14 Years Ago by jmaat7 … have to make an object first to use BigInteger. I think the return 0 is throwing it… off, b/c it needs to return a BigInteger. If its setup in the signature, you need… example: [code=java] public static BigInteger fNumberRoutes( int n, int m ){ BigInteger bigIntegerObject = new BigInteger("123"); return bigIntegerObject; }… Re: how to copy BigInteger? 15 Years Ago by Alex Edwards …/javase/6/docs/api/java/math/BigInteger.html[/url] [code=java] import java.math.BigInteger; public class TestingBigInteger{ public static …void main(String... args){ BigInteger first = new BigInteger("50"); BigInteger second = new BigInteger(first.toString()); System.out.println(first); … how to copy BigInteger? 15 Years Ago by phalaris_trip …... can someone explain to me how I can make a BigInteger object to make it have the same value as another… BigInteger object? That is they have to have the same value … around this by doing something like BigInteger foo = bar.add(BigInteger.ZERO); where bar is another BigInteger Thanks a lot, I've been… Re: A function that returns a BigInteger 14 Years Ago by iamsmooth Yeah, the line I posted is 29 so that's where the problem was. I didn't import it, but now I did and it says I can't return 0. Can anyone give me an explanation of how to work BigInteger? It's a class so I need to create a BigInteger object? Operations using BigInteger operations 14 Years Ago by pateldeep454 My code: [CODE] package big; import java.math.BigInteger; public class Main { public static void main(String[] args) {…variable nBig and fBig that convert x and n to BigInteger. Also how do i modify the return value for …the pow method to BigInteger which means changing the type for the i variable … Re: A function that returns a BigInteger 14 Years Ago by jmaat7 did you import the math api? import java.math.BigInteger; "cannot find symbol" usually means that you didn'… Re: how to copy BigInteger? 15 Years Ago by destin Just wondering... why do you want to do this? The BigInteger class is immutable, so two instances sharing memory will never be a problem. Re: Operations using BigInteger operations 14 Years Ago by chaospie Always remember, the Java API is your greatest weapon! :) [url]http://java.sun.com/j2se/1.5.0/docs/api/java/math/BigInteger.html[/url] Re: String to BigInteger conversion. 12 Years Ago by ~s.o.s~ … first using Long.parseLong() and then convert the long to BigInteger using BigInteger.valueOf(long val)[/quote] This won't work if… range, which is one of the main motivation for using BigInteger... [quote]thanks dear it worked, but isn't there any… Re: String to BigInteger conversion. 12 Years Ago by dantinkakkar Convert it to [icode]long[/icode] first using [icode]Long.parseLong()[/icode] and then convert the [icode]long[/icode] to [icode]BigInteger[/icode] using [icode]BigInteger.valueOf(long val)[/icode]. Cheers! :) Convert string "aA" to a BigInteger 18 Years Ago by kedklok hi, i was wondering if someone can help me. i am trying trying to convert a string containing aA into a bigInteger Value. i've read about it but have no idea how to implement it in java. thanks in advanced, K Re: Convert string "aA" to a BigInteger 18 Years Ago by iamthwee [QUOTE=kedklok]hi, i was wondering if someone can help me. i am trying trying to convert a string containing aA into a bigInteger Value. i've read about it but have no idea how to implement it in java. thanks in advanced, K[/QUOTE] This makes no sense. Care to elaborate? String to BigInteger conversion. 12 Years Ago by adil_bashir Can anyone help me to convert String to BigInteger. please Re: String to BigInteger conversion. 12 Years Ago by ~s.o.s~ In what way is the BigInteger constructor which accepts a string not working out for you? String division by integer, without converting string into biginteger. 10 Years Ago by ShivaRJ … String like "12345695123547895236412578963214563214578952144531214553362511455224555", without converting this string into BIGINTEGER format, divide that string with a integer value...... input String… Large numbers without using BigInteger 9 Years Ago by redtribal23 Is there a way to calculate large numbers without using BigInteger? I am calculating an exponent without using the math class. Re: BigInteger implementation C++ 12 Years Ago by VernonDozier To my mind, I can't see any reason to use a string as storage. As you mentioned, in order to use it at all, you have to constantly convert it back and forth. A vector of unsigned ints and a bool for the sign seems better. Just think of it as doing math in base 4294967296. Each unsigned int is a "digit" ranging from 0 to 4294967295, …