字母符号中英文罗马数字对照

字母符号中英文，罗马数字对照一、键盘符号释义：`backquote反引号~tilde波浪符!Exclam感叹号@at单价#numbersign井号英语是hash，美语是pound,音乐里是sharp$dollar美元币值符号%percent百分号^caret弧形号&ersand和，与，引用*asterisk,star星号,数学公式读作multiply(parenleft,openingparentheses左扩符号)parenright,closingparetheses右扩符号-minus;hyphen连字符,不读_underscore减号+plus加号=equal等号[bracketleft,openingbracket左方括号]bracketright,closingbracket右方括号{braceleft左花括号}braceright右花括号;semicolon分号:colon冒号'quote逗号doublequote引号/slash斜线，除号backslash反斜杠|bar分竖线,comma分隔符号less小于号greater大于号.Period句号，点?Question问号space空格二、数学符号释义：+plus加号；正号-minus减号；负号±plusorminus正负号×ismultipliedby乘号÷isdividedby除号＝isequalto等于号≠isnotequalto不等于号≡isequivalentto全等于号≌isequaltoorapproximatelyequalto等于或约等于号≈isapproximatelyequalto约等于号＜islessthan小于号＞ismorethan大于号≮isnotlessthan不小于号≯isnotmorethan不大于号≤islessthanorequalto小于或等于号≥ismorethanorequalto大于或等于号%percent百分号‰permill千分号∞infinity无限大号∝variesas与…成比例号√(square)root平方根∵since;because因为∴hence所以∷equals,as(proportion)等于，成比例∠angle角⌒semicircle半圆⊙circle圆○circumference圆周πpi圆周率△triangle三角形⊥perpendicularto垂直于∪unionof并，合集∩intersectionof交，通集∫theintegralof…的积分∑(sigma)summationof总和°degree度′minute分〃second秒℃Celsiussystem摄氏度{openbrace,opencurly左花括号}closebrace,closecurly右花括号(openparenthesis,openparen左圆括号)closeparenthesis,closeparen右圆括号()brakets/parentheses括号[openbracket左方括号]closebracket右方括号[]squarebrackets方括号.period,dot句号，点|verticalbar,verticalvirgule竖线&ersand,and,reference,ref和，于，引用/slash,divide,oblique斜线，斜杠，除号//slash-slash,comment双斜线，注释符#pound井号backslash,sometimesescape反斜线，转义符或续行符~tilde波浪符.fullstop句号,comma逗号:colon冒号;semicolon分号?questionmark问号!exclamationmark叹号'apostrophe撇号-hyphen连字号--dash破折号...dots/ellipsis省略号singlequotationmarks引号doublequotationmarks双引号‖parallel双线号，分隔号～swungdash代字号§section;division分节号→arrow箭号；参见号_underscore下划线三、罗马、阿拉伯数字、英语对照释义：I1one1stthefirstII2two2ndthesecondIII3three3rdthethirdIV4four4ththefourthV5five5ththefifthVI6six6ththesixthVII7seven7ththeseventhVIII8eight8ththeeighthIX9nine9ththeninthX10ten10ththetenthXI11eleven11ththeeleventhXII12twelve12ththetwelfthXIII13thirteen13ththethirteenthXIV14fourteen14ththefourteenthXV15fifteen15ththefifteenthXVI16sixteen16ththesixteenthXVII17seventeen17ththeseventeenthXVIII18eighteen18ththeeighteenthXIX19nineteen19ththenineteenthXX20twenty20ththetwentiethXXI21twenty-one21stthetwenty-firstXXV25twenty-five25ththetwenty-fifthXXX30thirty30ththethirtiethXL40forty40ththefortiethL50fifty50ththefiftiethLX60sixty60ththesixtiethLXX70seventy70ththeseventiethLXXX80eighty80ththeeightiethXC90ninety90ththeninetiethIC99ninety-nine99ththeninety-ninthC100onehundred100ththehundredth罗马数字记数方法和规则：I（1）V(5)X(10)L(50)C(100)D(500)M(1000)组数规则：左减右加。IXC中任何一个数字自身连用构成数目；VLD放在大数的右边采用相加的方式使用只能用其中之一；V和X数字左边只能用I；L和C左边的小数只能用X；D和M左边的小数字只能用C;在数字上加一横表示增加1000倍。简单举例:1100MC,1900MCM,4999MMMMCMXCIX