一、一一对应函数(one-to-one function) 若函数 f 从未取同一个值至少两次,即对任意 x1≠x2 有f(x1)≠f(x2) ,则称其为一一对应函数. 二、水平线检验 当且仅当没有任何一条水平线与函数图象曲线相交超过一次时,该函数是一一对应的. 如下例: 图记1.6-1 图左曲线相应的函数一一对应,图右的不一一对应...
百度试题 结果1 题目Determine if the function is one-to-one. 相关知识点: 试题来源: 解析 Yes, since all numbers in Domain are different and all numbers in Range are distinct i.e. -4, -2, 0, 1, 5.反馈 收藏
peerConn.onremovestream=function(event) {console.log("Removing remote stream"); }; }Server.addEventListener("message",function(message) {varmsg =JSON.parse(message.data);if(!myStream) {console.error('Error in my stream'); }if(msg.type==='offer') {createPeerConnection();co...
*/private$userId;publicfunctionsetAdvertId($advertId){$this->advertId=$advertId;return$this;}publicfunctiongetAdvertId(){return$this->advertId;}publicfunctionsetUserId($userId){$this->userId=$userId;return$this;}publicfunctiongetUserId(){return$this->userId;} Entity\Advert.php 代码语言:jav...
Cantor pairing function is really one of the better ones out there considering its simple, fast and space efficient, but there is something even better published at Wolfram by Matthew Szudzik, here. The limitation of Cantor pairing function (relatively) is that the range of encoded results d...
check function on the table, it would be less efficient than using a unique index-based check. Using such optional references also results in a less extensible schema – adding additional secondary extents requires the deployed primary extent to be modified to add the references, while extending ...
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I want to call a function in one PHP file from a second PHP file and also pass two parameters to that function. How can I do this? I am very new to PHP. So please tell me, should I include the first PHP file into the second? Please show me an example. You...
was obtained as a function of the LQI values of the linkl. The metric was also used for ADMR. The PATH-DR metric aims to choose the paths with the highest PDR, regardless of the number of hops. Note that the metric takes into account the quality of all the links of a path. ...