{"id":15039,"date":"2024-03-15T23:57:10","date_gmt":"2024-03-15T14:57:10","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/c%e8%a8%80%e8%aa%9e%e3%81%aemath%e3%83%a9%e3%82%a4%e3%83%96%e3%83%a9%e3%83%aa%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/"},"modified":"2025-08-06T00:41:37","modified_gmt":"2025-08-05T15:41:37","slug":"c%e8%a8%80%e8%aa%9e%e3%81%aemath%e3%83%a9%e3%82%a4%e3%83%96%e3%83%a9%e3%83%aa%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/c%e8%a8%80%e8%aa%9e%e3%81%aemath%e3%83%a9%e3%82%a4%e3%83%96%e3%83%a9%e3%83%aa%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/","title":{"rendered":"C\u8a00\u8a9e\u306emath\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"

math\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u3092\u30a4\u30f3\u30af\u30eb\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u4e00\u90e8\u306e\u4e00\u822c\u7684\u306amath\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u3068\u305d\u306e\u4f7f\u7528\u65b9\u6cd5\u3067\u3059\uff1a<\/p>\n

    \n
  1. \u6570\u5b66\u5b9a\u6570\uff1a<\/li>\n
  2. PI: \u5186\u5468\u7387\u03c0\u306f\u3001M_PI\u30de\u30af\u30ed\u3092\u4f7f\u7528\u3057\u3066\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002<\/li>\n
  3. E\uff1a\u81ea\u7136\u5bfe\u6570\u306e\u5e95e\u306f\u3001M_E\u3068\u3044\u3046\u30de\u30af\u30ed\u5b9a\u7fa9\u3092\u4f7f\u7528\u3057\u3066\u8868\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n
  4. \u6570\u5b66\u95a2\u6570\uff1a<\/li>\n
  5. \u6570\u5b66\u95a2\u6570\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u623b\u308a\u5024\u306f\u901a\u5e38\u3001\u500d\u7cbe\u5ea6\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\uff08double\uff09\u30bf\u30a4\u30d7\u3067\u3059\u3002<\/li>\n
  6. x\u306e\u7d76\u5bfe\u5024\u3092\u6c42\u3081\u308b\uff1aabs(x)\u3002<\/li>\n
  7. x\u306e\u5e73\u65b9\u6839\u3092\u6c42\u3081\u308b\uff1asqrt(x)\u3002<\/li>\n
  8. x\u306ey\u4e57\u3092\u8a08\u7b97\u3059\u308bpow(x, y)\u95a2\u6570\u3002<\/li>\n
  9. exp(x)\u306f\u3001e\u306ex\u4e57\u3092\u8a08\u7b97\u3059\u308b\u3002<\/li>\n
  10. log(x)\u306f\u3001x\u306e\u81ea\u7136\u5bfe\u6570\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<\/li>\n
  11. log10(x)\uff1ax\u306e\u5e95\u304c10\u306e\u5bfe\u6570\u3092\u8a08\u7b97\u3059\u308b\u3002<\/li>\n
  12. sin(x)\uff1ax\u306e\u30b5\u30a4\u30f3\u5024\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002 x\u306f\u30e9\u30b8\u30a2\u30f3\u3067\u8868\u3055\u308c\u307e\u3059\u3002<\/li>\n
  13. cos(x)\uff1ax\u306e\u30e9\u30b8\u30a2\u30f3\u5358\u4f4d\u3067\u306e\u4f59\u5f26\u5024\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<\/li>\n
  14. tan(x)\u306f\u3001x\u306e\u6b63\u63a5\u5024\u3092\u8a08\u7b97\u3059\u308b\u95a2\u6570\u3067\u3042\u308a\u3001x\u306f\u30e9\u30b8\u30a2\u30f3\u3067\u8868\u3055\u308c\u308b\u3002<\/li>\n
  15. ceil(x)\u306f\u3001x\u4ee5\u4e0a\u306e\u6700\u5c0f\u6574\u6570\u3092\u8fd4\u3059\u3002<\/li>\n
  16. x\u306e\u5e8a\u95a2\u6570\uff1ax\u4ee5\u4e0b\u306e\u6700\u5927\u6574\u6570\u3092\u8fd4\u3059\u3002<\/li>\n
  17. round(x)\uff1ax\u306b\u6700\u3082\u8fd1\u3044\u6574\u6570\u3092\u56db\u6368\u4e94\u5165\u3057\u3066\u8fd4\u3059\u3002<\/li>\n
  18. \u30e9\u30f3\u30c0\u30e0\u306a\u6570\u306e\u95a2\u6570:<\/li>\n
  19. \u30e9\u30f3\u30c0\u30e0\u6570\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u524d\u306b\u3001srand\u95a2\u6570\u3092\u547c\u3073\u51fa\u3057\u3066\u30b7\u30fc\u30c9\u3092\u521d\u671f\u5316\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n
  20. seed\u3092\u4f7f\u3063\u3066\u3001random\u6570\u306e\u7a2e\u3092\u521d\u671f\u5316\u3057\u307e\u3059\u3002seed\u306f\u6574\u6570\u3067\u3059\u3002<\/li>\n
  21. rand()\u306f\u30010\u304b\u3089RAND_MAX\u306e\u9593\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u6574\u6570\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u6307\u5b9a\u3055\u308c\u305f\u7bc4\u56f2\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u6570\u5024\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u3001\u5270\u4f59\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n

    \u4f8b\u3048\u3070\u3001\u6b63\u5f26\u95a2\u6570\u306e\u5024\u3092\u8a08\u7b97\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

    #include<\/span> <stdio.h><\/span><\/span>\r\n#include<\/span> <math.h><\/span><\/span>\r\n\r\nint<\/span> main<\/span>()<\/span> {\r\n    double<\/span> x = 1.0<\/span>;\r\n    double<\/span> result = sin<\/span>(x);\r\n    printf<\/span>(\"sin(%f) = %f\\n\"<\/span>, x, result);\r\n    return<\/span> 0<\/span>;\r\n}\r\n<\/code><\/pre>\n
    \u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001math\u30e9\u30a4\u30d6\u30e9\u30ea\u306esin\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066x\u306e\u30b5\u30a4\u30f3\u5024\u3092\u8a08\u7b97\u3057\u3001printf\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u7d50\u679c\u3092\u51fa\u529b\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    math\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u3092\u30a4\u30f3\u30af\u30eb\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u4e00\u90e8\u306e\u4e00\u822c\u7684\u306amath\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u3068\u305d\u306e\u4f7f\u7528\u65b9\u6cd5\u3067\u3059\uff1a \u6570\u5b66\u5b9a\u6570\uff1a PI: \u5186\u5468\u7387\u03c0\u306f\u3001M_PI\u30de\u30af\u30ed\u3092\u4f7f\u7528\u3057\u3066\u5b9a\u7fa9\u3067\u304d […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[16,26],"class_list":["post-15039","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-16","tag-26"],"yoast_head":"\nC\u8a00\u8a9e\u306emath\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"C\u8a00\u8a9e\u306emath\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/c\u8a00\u8a9e\u306emath\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u8a00\u8a9e\u306emath\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f\" \/>\n<meta property=\"og:description\" content=\"C\u8a00\u8a9e\u306emath\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/c\u8a00\u8a9e\u306emath\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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