PARI/Gp 有更新了

wayne

现在版本是 2.5 了 http://pari.math.u-bordeaux.fr/download.html

Done for version 2.5.0 (released 31/05/2011): Fixed BA 1- DESTDIR did not work. [#1194] BA 2- Improve Darwin shared library support. LGr 3- bnfinit -> oo-loop if class number is divisible by 27449 [#1197] BA 4- [gp2c] error("foo") did not work. 5- wrong generators in quadclassunit(D > 0) [ fix qfr3_pow / qfr5_pow ] [#1195] 6- setrand(45);quadclassunit(185477) -> SEGV [#1200] 7- fix derivnum for large arguments [#1201] 8- "#if READL" always evaluated to "FALSE" in gprc [#1202] 9- matsnf(non-square matrix, 4) --> SEGV [#1208] HC 10- fix p-adic Gamma inefficiency for small p: gamma(O(2^20))->no answer

wayne

gsl也有更新了 http://mirrors.ustc.edu.cn/gnu/gsl/

wayne

可惜mingw4.6到现在还没出来。 gcc4.6的 for 新特性在windows下不能体验了， 恨不得自己编译一个mingw

G-Spider

3# wayne windows下为什么不用vs 或Intel c++ ? 看了一下，gsl-1.15 的cblas_dgemm函数，双精度浮点矩阵乘法，接口符合cblas规范。 采用的是三重循环：

1. /* form C := alpha*A*B + C */
3. for (k = 0; k < K; k++) {
4. for (i = 0; i < n1; i++) {
5. const BASE temp = alpha * F[ldf * i + k];
6. if (temp != 0.0) {
7. for (j = 0; j < n2; j++) {
8. C[ldc * i + j] += temp * G[ldg * k + j];
9. }
10. }
11. }
12. }

复制代码

wayne

4# G-Spider 呵呵，习惯使然而已。

wayne

windows build 的稳定版也出来了 http://pari.math.u-bordeaux.fr/pub/pari/windows/gp-2-5-0.exe

G-Spider

MinGW distribution ("distro") currently contains GCC 4.6.1 and Boost 1.47.0. mingw-7.2.exe (16.8 MB) : This is a self-extracting archive. It's incredibly easy to install; see How To Install below. 解压就可以了。 http://nuwen.net/mingw.html

wayne

7# G-Spider TDM/MinGW 4.6.1也出来了 http://sourceforge.net/projects/ ... DM-GCC%20Installer/