Producing White Space in LaTeX

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1、ProducingWhiteSpaceinLaTeXProducingWhiteSpaceinLaTeXToproduce(horizontal)blankspacewithinaparagraph,usehspace,followedbythelengthoftheblankspaceenclosedwithinbraces.ThelengthoftheskipshouldbeexpressedinaunitrecognizedbyLaTeX.Theserecognizedunitsaregiveninthefollowingtable:ptpoint(1in=72.27

2、pt)pcpica(1pc=12pt)ininch(1in=25.4mm)bpbigpoint(1in=72bp)cmcentimetre(1cm=10mm)mmmillimetredddidotpoint(1157dd=1238pt)cccicero(1cc=12dd)spscaledpoint(65536sp=1pt)Thustoproduceahorizontalblankspaceof20mminthemiddleofaparagraphonewouldtypehspace{20mm}.IfLaTeXdecidestobreakbetweenlinesatapoin

3、tinthedocumentwhereanhspaceisspecified,thennowhitespaceisproduced.Toensurethatwhitespaceisproducedevenatpointsinthedocumentwherelinebreakingtakesplace,oneshouldreplacehspacebyhspace*Toproduce(vertical)blankspacebetweenparagraphs,usevspace,followedbythelengthoftheblankspaceenclosedwithin

4、braces.ThustoobtainoneshouldtypeThisisthefirstparagraphofsometext.Itisseparatedfromthesecondparagraphbyaverticalskipof10millimetres.vspace{10mm}http://www.maths.tcd.ie/~dwilkins/LaTeXPrimer/WhiteSpace.html（第1／3页）2008-5-2820:39:16ProducingWhiteSpaceinLaTeXThisisthesecondparagraph.IfLaTeXdec

5、idestointroduceatapointinthedocumentwhereavspaceisspecified,thennowhitespaceisproduced.Toensurethatwhitespaceisproducedevenatpointsinthedocumentwherepagebreakingtakesplace,oneshouldreplacevspacebyvspace*WenowdescribecertainfeaturesofLaTeXrelatingtoblankspacesandparagraphindentationwhichw

6、illimprovetheappearanceofthefinaldocument.ExperiencedusersofLaTeXwillimprovetheappearanceoftheirdocumentsiftheybeartheseremarksinmind.Firstnotethat,asageneralrule,youshouldneverputablankspaceafteraleftparenthesisorbeforearightparenthesis.Ifyouweretoputablankspaceintheseplaces,thenyourunther

7、iskthatLaTeXmightstartanewlineimmediatelyaftertheleftparenthesisorbeforetherightparenthesis,leavingtheparenthesismaroonedatthebeginningorendofaline.LaTeXhasitsownrulesfordecidingthelengthsofblankspaces.Forinstance,LaTeXwillputanextraamountofspaceafterafu