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发表于 2011-1-18 22:37:49
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来自 山东济南
本帖最后由 maplev12 于 2011-1-18 22:41 编辑
在Command Line下进行运算,可见并不是Maple计算耗费时间,而是重新分配内存耗费了时间,当第一次运算之后,内存变大,时间耗费小于计算机计时器的最小时间单位,计时器显示为0。速度远远快于Mathematica以及MuPad。的确强大……
【Maple 14 cmaple 运行】
C:\Documents and Settings\Administrator>"C:\Program Files\Maple 14\bin.win\cmapl
e"
|\^/| Maple 14 (IBM INTEL NT)
._|\| |/|_. Copyright (c) Maplesoft, a division of Waterloo Maple Inc. 2010
\ MAPLE / All rights reserved. Maple is a trademark of
<____ ____> Waterloo Maple Inc.
| Type ? for help.
> ti := time(): ifactor(5^100+5^75+5^50+5^25+1); time()-ti;
memory used=53.8MB, alloc=35.6MB, time=3.97
memory used=92.0MB, alloc=35.6MB, time=10.39
memory used=130.1MB, alloc=42.6MB, time=12.58
(767186663625251) (4032808198751) (24687045214139234043375683501)
(28707251) (3597751)
12.766
> tr := time(): ifactor(5^100+5^75+5^50+5^25+1); time()-tr;
(767186663625251) (4032808198751) (24687045214139234043375683501)
(28707251) (3597751)
0. #注意看这里,运算时间为“0”
>
【Mathematica Kernel运算结果】
C:\Documents and Settings\Administrator>"C:\Program Files\Wolfram
Research\Mathe
matica\7.0\math.exe"
Mathematica 7.0 for Microsoft Windows (32-bit)
Copyright 1988-2009 Wolfram Research, Inc.
In[1]:= FactorInteger[5^100+5^75+5^50+5^25+1]//Timing
Out[1]= {1.609, {{3597751, 1}, {28707251, 1}, {4032808198751, 1},
> {767186663625251, 1}, {24687045214139234043375683501, 1}}}
In[2]:= |
|