作者查詢 / VictorTom
作者 VictorTom 在 PTT [ C_and_CPP ] 看板的留言(推文), 共10783則
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3F推:問題在於, 你的計算不夠精確, 你只計算了13位, 等於後面04/19 01:07
4F→:都被你捨棄了, 所以再最後做進捨位時就出現了誤差@_@"04/19 01:08
5F→:印象中需要算到滿足位數加兩位, 並記錄兩位以後是否還有04/19 01:10
6F→:值, 然後00, 01捨, 11入, 10(有剩值)也入, 10(後全0)為04/19 01:11
7F→:特別的偶成雙規則(至少小弟記得32bit float是這樣啦XD)04/19 01:12
8F推:仔細想, 多算一位, 但進捨位時把餘數一起考慮就好了Orz04/19 01:17
9F推:印象中XP~Win7都只內建1.1的實作, 超過的都要靠顯卡廠的04/15 13:31
10F→:ICD; 關Aero才會正常跑GL應該是顯卡驅動的問題....@_@"04/15 13:32
11F→:關於GL的硬體加速, 在顯卡官方宣稱支援的GL版本與ext內,04/15 13:33
12F→:如果還有無法以全硬體實作的部份, 理論上驅動可以切進去04/15 13:34
13F→:軟體實作; 但是沒有宣稱有支援到的版本, 除了部份可能已04/15 13:35
14F→:實作的feature以ext的型式支援外, 就不太會轉軟體去做了04/15 13:36
6F推:大推....Orz04/11 10:17
15F推:推自己開個CMD, 然後去執行自己編出來的.exe檔....@_@"04/09 23:12
4F推:推:)04/09 09:45
11F推:推L大:)04/04 10:53
1F推:debugger開起來程式碼一行一行trace, 並且把每個當下用04/03 02:10
2F→:到的變數的值和位址都印出來看, 你就知道答案了....:)04/03 02:11
4F→:j大真是個好人....XD04/03 02:13
2F推:optimization開下去以後build出來的版本有run-time err,04/03 02:06
3F→:通常有一半以上的機會是code寫的有問題, 所以最佳化一開04/03 02:07
4F→:下去, 就把潛在的問題expose出來....@_@"04/03 02:07
2F推:XDD04/01 17:31
2F推:讚XD04/01 16:39