function [ binary,decimal ] = num2binary16( number ) %The IEEE 754 standard specifies a binary16 as having the following format: %Sign bit: 1 bit %Exponent width: 5 bits %Significand precision: 11 bits (10 explicitly stored) %S EEEEE MMMMMMMMMM %INPU…

Oracle只是在语法上支持decimal类型,但是在底层实际上它就是number类型,支持decimal类型是为了能把数据从Oracle数据库移到其他数据库中(如DB2等). 因为decimal在Oracle底层就是number类型,所以就当number类型使用就可以了,如果需要对这种字段类型转为char类型可以用to_char函数对其转换. decimal类型从根本上说应该是数字类型的,因为oracle内部的数据类型,对于数字只有number类型,都当数字类型进行处理即可.decimal(8…

有时客户需要流水数据,当导出为excel的时候,客户编号等很长数字的栏位,被excel变成科学记数法,无法正常查看. 因此,需要将Oracle/MySQL中的decimal/int 转 varchar,这样在excel中就可以放心查看了. Oracle的转换方法: 1.新建表,并插入数据 drop table test purge;create table test(id number);insert into test values(13913613345);select * from tes…

Given an array consists of non-negative integers, your task is to count the number of triplets chosen from the array that can make triangles if we take them as side lengths of a triangle. Example 1: Input: [2,2,3,4] Output: 3 Explanation: Valid combi…

@http://www-cs-faculty.stanford.edu/people/karpathy/cvpr2015papers/ CVPR 2015 papers (in nicer format than this) maintained by @karpathy NEW: This year I also embedded the (1,2-gram) tfidf vectors of all papers with t-sne and placed them in an interf…

General Decimal Arithmetic http://speleotrove.com/decimal/ General Decimal Arithmetic [ FAQ | Decimal web links | Bibliography | Arithmetic specification | Formats (encodings) | decNumber C implementation | DFPAL | Testcases | Summary | Web links | D…

以下转换代码摘自维基百科 Wikipedia: /* The purpose of this function is to convert an unsigned binary number to reflected binary Gray code. The operator >> is shift right. The operator ^ is exclusive or. */ unsigned int binaryToGray(unsigned int num) { ) ^ num;…

呵呵,这个翻译还是很直白的嘛,大家意会就好. 第一次看到这个高大上题目还是有点小害怕的,还好题没有做过深的文章. 只要按照规则转化成十进制就好了,而且题目本身也说了最大不超过一个int的范围(2^31-1 == 2147483647). 直接位运算就好了.   Skew Binary  When a number is expressed in decimal, the k-th digit represents a multiple of 10k. (Digits are numbered f…

General Purpose Hash Function Algorithms post@: http://www.partow.net/programming/hashfunctions/index.html       Description Hashing Methodologies Hash Functions and Prime Numbers Bit Biases Various Forms Of Hashing String Hashing Cryptographic Hashi…

Friendly number Long numbers can be made to look nicer, so let’s write some code to do just that. You should write a function for converting a number using several rules. For starters, you will need to cut the number with a given base (base argument;…