Yahoo!奇摩股市 - 期貨外匯
Yahoo!奇摩股市
〈期指〉台指期多軍轉強抬 10日、季線來回操作
Jul 10th 2013, 12:10

〈期指〉台指期多軍轉強抬 10日、季線來回操作
2013/07/10 20:10 鉅亨網 記者陳慧琳 台北

台指期今(10)日盤中遭到電子權值股拖累,追價力道不足,挑戰季線失敗,不過尾盤金融期領軍穩住陣腳,收盤前一波反彈,最後收在7961點,小漲39點,線收紅K,期貨分析師表示,多頭連續2天明顯抬頭,不過今晚公布的美國聯準會會議紀錄以及柏南克的發言將是影響股市的關鍵,短線還是看10日線、季線來回操作。

台指期今天上漲39點收在7961點。價差方面,四大期指皆為逆價差。台指期逆價差50.69點,還原7月合約待除權息點數後,台指期轉逆價差至8點。電子期逆價差2.68點,金融期逆價差7.57點,摩台期逆價差2.34點。

從期指大額交易人部位變化來分析,全月份十大交易人於期貨市場多單加碼2269口,淨多單升至7774口,特定法人多單加碼3099口,淨多單升至5999口。

三大法人今天於期貨市場多單加碼3078口,淨部位多單升至7566口,外資期貨多單加碼3828口,淨多單升至4492口,於現貨部位連2日買超近70億元,顯示對後勢看法轉趨中性偏多。

選擇權從成交量來觀察,7月份買權集中在8000點,賣權集中在7900點。未平倉量部份,買權未平倉量大量區仍在8000點,而賣權大量區則在7800點。全月份未平倉量put/callratio由1.06升至1.12,7月買權平均隱含波動率由11.32%降至10.8%,賣權平均隱含波動率由13.81升至14.9%,買權降賣權升,操作上建議仍於7800-8200點建立買權多頭價差因應。

期貨分析師表示,由技術面來看,指數再度站回月線之上,但是上方季線壓力沉重,能否有效站回季線之上唯量是問。由籌碼來觀察,三大法人持續期、現貨多單加碼,短線不看淡,但操作上維持先前看法在10日與季線間來回操作為宜。

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Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 發問中
Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 發問中
16x16 LED 矩陣 字幕
Jul 10th 2013, 19:18
現在想要以4個 8x8 的LED 來作 16x16 的LED字幕機,網路上以有許多資料,但是,不太能清楚知道是否以USB +5V供電是否足夠?

以及為何共陰極的部分需要以ULN2803達靈頓IC來驅動,是否是因為電壓不足,還是什麼原因呢?

另外,該如何區分是所使用的LED是要接共陰極還是共陽極?

以下是參考的電路連結:
http://m955.com/wp/setup/16X16LED_Anode.pdf

裡面有用到兩顆 74LS373 並且接了16個56的電阻,這邊單位是歐姆嗎@@?
這兩顆是否可以直接以兩顆 ULN2803 達靈頓替換以及是否還需要再接電阻或是電晶體?

是否是共陽極的話就要接PNP電晶體,共陰極則是NPN電晶體,接電晶體的目的為何呢@@?

問題有點多...而且有點亂,可能還會有其他問題,希望有人能指教 ><"

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Yahoo!奇摩知識+ - 分類問答 - 生活資訊 - 發問中
Yahoo!奇摩知識+ - 分類問答 - 生活資訊 - 發問中
聰明消費者
Jul 9th 2013, 16:05

汽水一罐25元,巧克力一包35,橘子一個12元,小蛋糕一塊10元,棒棒糖一根7元,蘋果一個15元 問題如下
請妳至少找出三種組合(以種類越豐富,每位同學都能有一種點心,最接近三百元為原則)
那如果大大沒有三種組合也沒關西!謝謝各位大大

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