Hng dn s dng Openoffice mathGii thiuTrong cc b cng c ca openoffice th kh ging microsoft office , ngi dng c th lm quen kh l d dng , nht l khi openoffice c ting vit , sau khi ci gi ngn ng vit vo th c th hin th tt c ting vit , thm ch c hng dn ting vit lun nn cng khng kh khn lm trong vic hc . Nhng phi ci l ci math th kh l lm , khng theo chun Tex m nhiu ngi vn dng hay nh equation ca word , mathtype v khng c trc quan cho lm . Mnh phi tm hiu kh lu mi bit c cht t v n , v vy mnh vit on tut ny chia s vi nhng ngi mi lm quen v ci ny . Trc ht gii thiu v tnh nng ca ci thng Math ny , Math l 1 cng c son tho cng thc ton hc (nh trong microsoft Word c equation) . Mt cng c khng th thiu i vi cc vn bn ton hc , k thut i hi hin th cng thc tnh ton phc tp , cn i vi cc cng thc n gin th ch cn dng 2 nt nh hnh di l .

Nhng nu mun trnh by tch phn, ma trn , cn , phn s, s pi , cc k hiu ... th khng th no c , phi dng Openoffice Math thi .

Bc u s dng Openoffice Math chn n vo trong openoffice th chng ta phi kch hot n bng cch chn Insert trn thanh menu ca openoffice writer ->Object -> Fomula (hnh du cn y) truy xut nhanh bn c th t hotkey cho n nh mnh t n l Ctrl+N bng cch t openoffice writer menu chn tools customize chn tab keyboard t hotkey v lm theo cc bc ca hnh sau:

By gi bn ch vic n Ctrl+N l s t ng hin ra cng c son tho cng thc , hoc vit cng thc ra trong openoffice ri bi en , n Ctrl+N cng thc s t ng hin khng cn vo trnh son tho

S dng bng Selection son cng thcC my cch son tho cng thc trong Math , nhng cch trc quan d dng nht c l l dng ca s selection , hin ca s hy chn view -> selection

N s ra ca s nh sau :

hy th bm vo nt +a trn dng u tin ca chng trnh . N s ra: + chnh l phn gi tr ta thay vo hon thnh cng thc , khi son ta hy xo n i thay vo cng thc . Duyt quanh 1 lt cc nt trong tab 1 "+a/a+b" th thy cng chng c g l kh khn khi x my thng ny c .C mi ci nt a/b hai dng th n hin th ra : {} over {} . Du ngoc ny th hin 1 nhm phn t c gom li , v d 1 cm cng thc ... . Chng ta th xem khng c du th n s th no nh.

Nh trn ta thy , cng thc u 5+7 c t trong ngoc kp ,s c hiu l tham s u tin ca over , v 8 l tham s tip , cn cng thc th 2 , ch c 7 l tham s ca 1 thi . Cng ging nh ( 5 + 7 ) / 2 khc

vi 5 + 7/2 trong tnh ton vy . Cc bn cng hon ton c th s dng (..) thay th { ..} nhng nh th n s hin du (..) trn cng thc . cc bn c hiu cc ton t nh over trn nh du + , - cho d mng tng . Du {..} s cn dng rt nhiu Tab th 2 ca phn ny l cc ton t so snh:

Ci ny th d ri , c g ni u (^_^). Cc tab cn li cng d c , ging tab u thi , ch c 2 tab cui cn nghin cu. Tab c cc du ngoc

y l 1 tab kh quan trng , n lin quan n cc du ngoc, bao gm c h phng trnh , du ngoc cho ma trn (quan trng lm). bm vo cc nt du ngoc , ta thy cng bnh thng , nhng gi ta mun vit du m ngoc th sao nh , th ny chng

Sai ri , nu d vy th mnh cn cp n n lm g na , hnh trn chng phi hin th 2 du hi sao . N ch hin th khi c du ng ngoc thi. Vy , lm th no vit du ( nu khng mun vit du ng ngoc . Rt n gin bn hy thm du st \ nh hnh sau , tng t vi cc du khc

Vi du ngoc cho 2 dng lin (h phng trnh , t cc kt qu g g suy ra th

chng ta dng chc nng ca tab cui l chc nng 2 dng th chng ta ra kt qu khng my kh quan ^^ (du ngoc khng h t 2 dng m ch nh 1 k t a, b , c , cng hng vi ch h phng trnh

hin th du ngoc cho 2 dng ta cn phi dng chc nng du ngoc 2 dng :

left lbrace binom{x+2=1}{4-y=2} right rbrace xo du ngoc sau , chng ta thay rbrace thnh none ( ... right rbrace thnh ... right none) left lbrace binom{x+2=1}{4-y=2} right none Xo du ngoc cui th no th xo du ngoc u cng tng t thay left lbrace thnh left none thi . y l kt qu

Tab cui cng l tab lin quan n nh dng, cn l , ch s trn di

y l tab c l phi kt hp nhiu nht vi cc cng thc. Chng ta hy v 1 con tch phn , tab th 5 (cui dng 1), chn du tch phn . Tch phn trn u v di c khong , vy chn ch s trn v di tab cui cng ny, n ra nh sau: int csub{} csup{} xo du u tin i cn int csub{} csup{} (ch s trn v di con du tch phn m). Kt qu:

Ma trn h, th th phi kt hp du m ngoc nhiu dng vi ma trn tab nh dng: left ( matrix{1 # 2 ## 3 # 4 } right ) nhn hnh cng bit ma trn c cu trc 1 du # nu l phn t bn cnh 2 du ## cho xung dng ma trn , vy ma trn 3*2 ny: left ( matrix{1 # 2#5 ## 3 # 4 #6 } right )

Vit cc k t ton hc vit cc k t c bit ton hc th vo tools - > catalog:

Bn chn k t cn dng ri nhy p hoc n nt Insert thm vo . N s ra k t %ALPHA trong ca s son cng thc . Sau ny nh tn k t ri th ch vic g trc tip thi , khng cn m ca s nh trn na . Mt s k t c bit nh cc k t ny trong phn laplace ca mn hm phc trong i hc : khng c trong phn math , phi nh ngha thm : bn bm nt Edit... Ri bn lm theo hnh sau l c

Trn ca s ny cn c cc nt Delete xa k t c bit nh ngha , Modify i k t , cc bn t tm hiu nh , rt n gin thi .

Nu bn khng c font Cambria Math th bn phi kim trn mng hay u tm 1 font ton hc c k t cn thm. Sau khi thm th trong danh sch phn Special (lc ny chn) c thm k t mi nh ngha , bn kch p vo n hoc g %KyTu1 ca s son tho hin th cng thc :

Truy cp n cc thnh phn cng thcCn 1 ci ny na rt quan trng l khi son cng thc phc tp, vic nhn tng th tm n ch mnh cn sa, thay i l mt vic kh mt y, nht l vi ngi mi lm quen , nh mnh quen son bng mathtype son trc tip trn cng thc nn vit cng thc bng m th ny m di di mt cht , hay ly on m u paste vo th cht lun . Nhng mnh pht hin 1 tnh nng rt hay ca n , chng ta c th nhy n phn m trc tip trn giao din hin th cng thc V d di y l mnh lm ci ma trn , nu nhy 1 ln th con tr s chuyn vo v tr phn t ma trn mnh nhy, nhy 2 ln (kch p) th on code (m) s c bi en, thay trc tip vo l c . Cch ny khin cho vic nhp m tr nn d dng hn rt nhiu , l s kt hp gia vic vit code v son trc quan . Trong tng lai, c th openoffice s ci tin ci ny c th nhp trc tip nh mathtype hay equation ri bn di t sinh code lun (ging son web bng frontpage y)

Cc v dCc thng tin tip theo cc bn c th tham kho file hng dn ca openoffice, my ci ny l my ci cn ch khi son tho mnh thy cn lu thi , nhng mnh tin chc chn l vic lm nhng th khc cng khng kh khn lm , c th t m tip c m khng cn c thm ti liu . Sau y l 1 vi v d minh ho : x = {-b+-sqrt{b^2-4ac} } over {2a} D_mn^ size /2 LEFT(3 OVER 2 RIGHT) %SIGMA_g^{{}+{}}lsup 3 %PHI^{i_1 i_2 dotsaxis i_n}_{k_1 k_2 dotsaxis k_n} font sans bold size *2 A =left[matrix{A_11#A_12#dotsaxis#A_{1n}##A_21#{} #{}#A_{2n}##dotsvert#{}#{}#dotsvert##A_{n1}#A_{n2}#dotsaxis#A_nn}right] func G^{(%alpha" ," %beta)}_{ x_m x_n} = left[ matrix { arctan(%alpha) # arctan(%beta) ## x_m + x_n # x_m - x_n }right] bold { f(x", "y) = left [ stack { x + y over z + left lbrace matrix { 2 # 3 # 4 ## 4 # 5 # 6 ## 6 # 7 # 8} right rbrace # {y + sin (x)} over %alpha # z + y over g } right ]}

func f(x","y)={x sin x~ tan y} over {cos x} %LAMBDA_{deg","t}=1 + %alpha_deg SQRT {M_t over M_{(t=0)}-1}~"." f(t)=int from size*1.5 0 to 1 left[g(t')+sum from i=1 to N h_i(t')right] %rho(font sans bold q","%omega) = int func e^{i %omega t}%rho(font sans bold q","t)"d"t

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