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| def memprof | |
| def vmsize | |
| IO.readlines("/proc/self/status").grep(/VmSize/)[0].scan(/\d+/)[0].to_i | |
| end | |
| GC.start | |
| GC.disable | |
| before = vmsize | |
| begin | |
| yield | |
| after = vmsize |
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| .file "tmp.c" | |
| .section .rodata | |
| .LC0: | |
| .string "hello world" | |
| .text | |
| .globl main | |
| .type main, @function | |
| main: | |
| leal 4(%esp), %ecx | |
| andl $-16, %esp |
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| /* | |
| * ffsc - far faster scala compiler, omit booting time of fsc(1) | |
| * | |
| * Copyright (c) 2010 Tadashi Saito | |
| * | |
| * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| * of this software and associated documentation files (the "Software"), to deal | |
| * in the Software without restriction, including without limitation the rights | |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| * copies of the Software, and to permit persons to whom the Software is |
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| require "decimal" | |
| require "bigdecimal" | |
| require "bigdecimal/math" | |
| N = 100 | |
| STEP = 10 | |
| TRY = 10 | |
| result = { | |
| n: (0..N).map{|m|m * STEP}, |
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| sqrt | Decimal | BigDecimal | |
|---|---|---|---|
| 0 | 0 | 0 | |
| 30 | 0.124887 | 0.028016 | |
| 60 | 0.168286 | 0.050961 | |
| 90 | 0.193021 | 0.089924 | |
| 120 | 0.244228 | 0.120451 | |
| 150 | 0.284446 | 0.152398 | |
| 180 | 0.328916 | 0.18304 | |
| 210 | 0.392945 | 0.316898 | |
| 240 | 0.460614 | 0.386293 |
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| require "decimal" | |
| y = Decimal::Math.sqrt(2, 50) | |
| puts "sqrt(2) = #{y}" #=> sqrt(2) = 1.41421356237309504880168872420969807856967187537694 | |
| include Decimal::Math # you can include the module, same as ::Math | |
| y = log(10, 50) | |
| puts "log(10) = #{y}" #=> log(10) = 2.30258509299404568401799145468436420760110148862848 |
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| --- bernoull.c~ 1991-01-20 18:43:42.000000000 +0900 | |
| +++ bernoull.c 2010-08-02 23:06:40.000000000 +0900 | |
| @@ -21,6 +21,7 @@ int main() | |
| int i, n; | |
| double q, b1, b2, d; | |
| static double t[N + 1]; | |
| + int s = -1; | |
| q = 1; | |
| t[1] = 1; |
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| (1996/4: 中学入学) | |
| 1998/10: 第二種情報処理技術者試験合格 | |
| (1999/4: 高校入学) | |
| 1999/8: www.linux.or.jp にて「オープンソースソフトウェア」ブックレビュー | |
| http://www.linux.or.jp/bookreview/OpenSrcSoftware.html#issue3 | |
| (2002/4: 大学入学) |
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| #include <iostream> | |
| #include <cstdlib> | |
| using namespace std; | |
| int operacion(int x) | |
| { | |
| int y; | |
| static const int primes[] = { | |
| 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, | |
| 43, 47, 53, 59, 61, 67, 71, 79, 83, 89, 97 | |
| }; |
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| Index: lib/csv.rb | |
| =================================================================== | |
| --- lib/csv.rb (revision 29897) | |
| +++ lib/csv.rb (working copy) | |
| @@ -1198,6 +1198,7 @@ | |
| encoding = options.delete(:encoding) | |
| mode = "rb" | |
| mode << ":#{encoding}" if encoding | |
| + return open(path, mode, options).to_enum if block.nil? | |
| open(path, mode, options) do |csv| |
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