length of vector

length of vector的基本解释

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向量的长

与length of vector相关的网络例句 [注：此内容来源于网络，仅供参考]

System.out.println("a.length="+ a.length); System.out.println("b.length ="+ b.length);// The handles inside the array are // automatically initialized to null: for(int i = 0; i nbsp;b.length; i++) System.out.println; System.out.println("c.length ="+ c.length); System.out.println("d.length ="+ d.length); a = d; System.out.println("a.length ="+ a.length);// Java 1.1 initialization syntax: a = new Weeble { new Weeble, new Weeble }; System.out.println("a.length ="+ a.length);// Arrays of primitives: int e;// Null handle int f = new int[5]; int g = new int[4]; for(int i = 0; i nbsp;g.length; i++) g = i*i; int h ={ 11, 47, 93 };// Compile error: variable e not initialized://!

句柄。此时，编译器会禁止我们对这个句柄作任何实际操作，除非已正确地初始化了它。数组b被初始化成指向由Weeble句柄构成的一个数组，但那个数组里实际并未放置任何Weeble对象。然而，我们仍然可以查询那个数组的大小，因为b指向的是一个合法对象。这也为我们带来了一个难题：不可知道那个数组里实际包含了多少个元素，因为length只告诉我们可将多少元素置入那个数组。换言之，我们只知道数组对象的大小或容量，不知其实际容纳了多少个元素。尽管如此，由于数组对象在创建之初会自动初始化成null，所以可检查它是否为null，判断一个特定的数组&空位&是否容纳一个对象。类似地，由基本数据类型构成的数组会自动初始化成零、null或者false。

This is my last OpenGL for a project to use the "three-dimensional vector space / point" and related functions, they can use a definition of space vector / points, for the vector translation, zooming and rotation, the use of correlation function can also achieve two vector by the fork, get a Vectors absolute length of a vector unit, received a 3:00 decision vector perpendicular to the plane, a space to be the distance between two points, two vector to be the plot points, to be the angle between two vectors, such as operating for the use of user-friendly, each function is detailed Notes, it is particularly important if the calculation vector plot points, fork also took note, we hope to have useful.

这是我过去进行一个OpenGL项目时使用到的"三维空间向量/点"类及相关函数，使用它们可以定义一个空间向量/点，实现向量的平移，缩放和旋转等，使用相关函数还可以实现两向量的叉乘，得到一个向量的绝对长度，将一个向量单位化，得到一个三点决定的平面的垂直向量，得到空间中两点的距离，得到两向量的点积，得到两向量的夹角等操作，为方便用户的使用，每个函数都有详细的注释，特别重要的向量计算如点积，叉乘还有相关说明，希望对大家有所用处。

Gondii, were cloned by PCR respectively. The PCR products were digested by the corresponding enzymes and ligatd into the intermedial vectors. Finally, the inducible RNAi vector, pBSK-HSP70/5UTR-IntronC-HSP70/3UTR, with the HSP70 gene promotor as a promotor, the intron C sequence ofβ-tubulin gene as intervening sequence, 3UTR sequences of HSP70 gene as transcription stop signals, was constructed successfully, and the results of sequencing were correct. 3The construction of the inherited and inducible RNAi vector system of T. gondii: The fragment of SAG1/5UTR-eGFP-SAG1/3UTR in pBSK-SAG1/GFP vector was cloned into the vector of pBSK-HSP70/5UTR-IntronC-HSP70/3UTR to construct pBSK-GFP-Hairpin vector, then the fragment of GFP-Hairpin in pBSK-GFP-Hairpin vector was cloned into pHANA-0.5 vector.

弓形虫可诱导的反向重复序列RNAi载体的构建：设计引物，通过PCR分别扩增弓形虫HSP70基因5&UTR启动子序列(HSP70／5UTR)、HSP70基因3&UTR序列(HSP70／3UTR)及β-微管蛋白基因内含子C序列，通过酶切连接，构建以弓形虫热休克蛋白HSP70基因启动子进行驱动的，以β-微管蛋白基因内含子C序列作为间隔序列，以HSP70基因3UTR序列作为转录终止信号的反向重复序列RNAi载体pBSK-HSP70／5UTR-IntronC-HSP70／3UTR，序列测定结果正确。

与length of vector相关的网络解释 [注：此内容来源于网络，仅供参考]

length of vector：向量的长

length of tangent 切线的长 | length of vector 向量的长 | length unit 长度单位

length of vector：向量长度

length of time 持续时间,期间 | length of vector 向量长度 | length overall 全长,总长

length of vector：向量度

"扫描线长度","length of scanning line" | "向量度","length of vector" | "波长","length, wave"

Euclidean length of vector：向量的;欧氏长度

欧几里德几何 Euclidean geometry | 向量的;欧氏长度 Euclidean length of vector | 欧式范数 Euclidean norm

length of a vector：向量的长

length of a scale division | 标度分格间距,分格(度)长度 | length of a vector | 向量的长 | length of action | 啮合长度,作用长度