gmp

Hi i want to load DBF file to mysql, am using xampp,php version 5.5.6 i had write the below code, But am getting Error --- Fatal error: Call to undefined function dbase_open() in C:\xampp\htdocs\imports\import_geo.php on line 47 $dbf = dbase_open('OUTLETS/regions.dbf', 0); $num_records = dbase_numrecords($dbf); for($i=1;$i<=$num_records;$i++) { $record = dbase_get_record_with_names($dbf, $i); $stmt_bricks->execute(array( ':id' => $next_brick_id, ':type' => 'Region', ':code' => $record['REG_CODE'], ':descr' => $record['REG_DESC'], )); $regions_code_to_id[$record['REG_CODE']] = $next_brick_id++;

I'm having trouble calculating roots of rather large numbers using bc_math, example: - pow(2, 2) // 4, power correct - pow(4, 0.5) // 2, square root correct - bcpow(2, 2) // 4, power correct - bcpow(4, 0.5) // 1, square root INCORRECT Does anybody knows how I can circumvent this? gmp_pow() also doesn't work. I'm not a PHP programmer but looking at the manual it says you have to pass them in as strings i.e. bcpow( '4', '0.5' ) Does that help? Edit : The user contributed notes in the manual page confirm that it doesn't support non-integer exponents. I did come across this discussion of a PHP N

I need to get all the prime factors of large numbers that can easily get to 1k bits. The numbers are practically random so it shouldn't be hard. How do I do it efficiently? I use C++ with GMP library. EDIT: I guess you all misunderstood me. What I mean by prime a number is to get all prime factors of the number. Sorry for my english, in my language prime and factor are the same :) clarification (from OP's other post): What I need is a way to efficiently factor(find prime factors of a number) large numbers(may get to 2048 bits) using C++ and GMP(Gnu Multiple Precession lib) or less preferably

(I'm not sure if "flag" is the word I'm looking for, but I'll explain it.) I am trying to compile a program that uses the GMP big number library. But to be able to compile with GMP, I have to add -lgmp to the end of the command. For example, if I want to compile "program.c", I have to type gcc program.c -lgmp . This is easy from the command line, but I don't see how to do it in Xcode. How can I add the lgmp flag while using Xcode? Right-click the target in the Xcode Groups and Files list and select Get Info from the contextual menu. In the Build tab, type linker into the search field and then

I downloaded GCC 4.5 from http://www.netgull.com/gcc/releases/gcc-4.5.0/ but when I try to setup / build I am getting below error: Linux:>~/shared_scripts/bin/gcc/gcc-4.5.0 1040> /x/home/prakash_satya/shared_scripts/bin/gcc/gcc-4.5.0/configure CC="gcc -m64" --prefix=/x/home/prakash_satya/shared_scripts/bin/gcc/gcc-4.5.0 --with-gmp-lib=/usr/lib64 --with-mpfr-lib=/usr/lib64 --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-languages=c,c++ checking build system type... x86_64-unknown-linux-gnu checking host system type... x86_64-unknown-linux-gnu checking

How do arbitrary-precision libraries like GMP store extremely large floating-point numbers represented in memory? I would imagine that if for instance you wanted to compute Pi or Euler's constant to say, 2,000,000 digits that you would allocate a massive array of bytes for the digits to the right of the decimal place. Each byte would store 2 decimal place values and the array would be a member of a data structure with the number of digits and number of bytes used to store the value. Is this how it works? Current computers have 32 or 64-bit registers, so doing calculations on bytes is very

Is there a way to convert a mpz_t variable to unsigned long long in C?How about the other way around,from ull to mpz_t?The gmp library doesn't support this as ull are part of C99. I found this but it's in c++,and I don't know how to code in c++.Thanks in advance. Here are some functions for translating between unsigned long long and mpz_t . Note that mpz2ull will smash your stack if the number is too big to fit into an unsigned long long : unsigned long long mpz2ull(mpz_t z) { unsigned long long result = 0; mpz_export(&result, 0, -1, sizeof result, 0, 0, z); return result; } void ull2mpz(mpz_t