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WebRules at a Glance. Chr and Chr$ return the character associated with an ASCII or ANSI character code. ChrB and ChrB$ return a one-byte string variant or a one-byte string, respectively. ChrW returns a Unicode character; however, on systems that don't support the Unicode character set, the function behaves identically to the Chr function. WebJun 10, 2011 · 目前计算机中用得最广泛的字符集及其编码,是由美国国家标准局 (ANSI)制定的ASCII码(American Standard Code for Information Interchange,美国标准信息交换 … dave harmon plumbing goshen ct
八除以根号二等于多少 - 百度知道
WebDec 21, 2016 · 根号2乘2 :后一个根号在内还是在根号外 ... 评论. 匿名. 2016.12.21 回答. 2,两个相同数相乘就 等于这个数的平方,平方和根号是相反的,消除了就是2. 16. Web举报. arc是指三角函数的逆运算.如sin(30度)=1/2,那么,arcsin (1/2)=30度. 类似还有arcsin,arccos,arctan,arccot……. 所以arctan (1/2)=0.463648=26.5651度. 解析看不懂?. Webcosπ/2 =0 sinπ/2=1-cos-π/2=0 sin-π/2=-1 如果本题有什么不明白可以追问,如果满意请点击“选为满意答案” 解析看不懂? 免费查看同类题视频解析 dave harman facebook