Mathcad belongs rau ib feem ntawm lub software uas ua kev nkag mus tsis tau rau ib tus neeg siv dog dig. Thiab nws tsis yog hais txog tus nqi siab, tab sis hais txog txoj haujlwm muaj. Qhov no tsis yog tsuas yog "lub laij lej", tab sis ib puag ncig ntawm qhov kev tsim tawm, uas tsuas yog ob peb puas nplooj ntawv ntawm phau ntawv nyeem pab kom muaj kev paub zoo nkaus.
Cov Lus Qhia
Kauj ruam 1
Siv cov hauv paus. Qhov no yog kev ua haujlwm rau kev daws qhov sib npaug ntawm ib qho kev sib cav, uas tso cai rau koj kom pom cov txiaj ntsig ntawm daim f (x) = 0. Nco ntsoov tias yog tias koj kab zauv yog hauv daim y = f (x), koj yuav tsum hloov nws lossis siv txoj kev daws teeb meem tshiab.
Kauj ruam 2
Teem cov nqi. Tsim ob txoj kev vaj huam sib luag, piv txwv li x: = 0 thiab f (x): = sin (x) + x + 1.2. Cov ib puag ncig yuav cia li paub txog lawv raws li qhov zwj ceeb, tom qab ntawd koj tuaj yeem sau kab hauv paus (f (x), x) =, nyob rau ntawm sab xis ntawm cov lus teb kom raug yuav tau hloov chaw. Nws raug nquahu kom siv daim ntawv no ntawm cov teebmeem daws teebmeem yog tias nws yuav tsum muaj kev daws teebmeem ntau hom lossis lwm yam kev sib luag.
Kauj ruam 3
Nkag mus tsis ncaj qha rau hauv txoj haujlwm. Hom no hloov tawm tau nrawm dua yog tias koj xav tau los suav ib qho kev sib npaug: cov piv txwv sau raws li hauv paus (kev txhaum (x) + x + 1.2, 1). Ntxiv rau, koj tuaj yeem txwv qhov ntau ntawm cov kev daws teeb meem los ntawm kev ntxiv ob qho kev sib cav ntxiv (tus lej cais los ntawm lub chaw sau ntawv), nruab nrab ntawm qhov kev tshawb nrhiav yuav ua.
Kauj ruam 4
Teem lub precision ntawm koj nrhiav rau ib lo lus teb. Vim hais tias qhov kev txiav txim siab hauv matchad yog nqa tawm ntawm infinite series, tom qab ntawd tus naj npawb ntawm cov tswv cuab ntawm cov series tuaj yeem txiav txim siab los ntawm TOL tshwj xeeb. Kev teeb tsa ntawm tus nqi hauv ib rooj plaub tshwj xeeb yog tau ua raws li TOL: = 0.01 lossis lwm tus lej. Thoob lub ntiaj teb, koj tuaj yeem teeb tsa qhov sib txawv ntawm cov khoom "Mathematics" -> "Parameters" -> "Variables" -> "Kev zam ntawm kev sib sau". Tus nqi yuav tsum tau txiav tawm kuj yog tias qhov kwv yees thawj zaug tsis txaus kom pom qhov sib txawv ntawm ib khub ntawm cov hauv paus hniav.
Kauj ruam 5
Kuaj koj cov nkag yog tias koj tau txais Tsis tuaj yeem hloov mus rau hauv txoj kev daws teeb meem. Tsab ntawv tshaj tawm no txhais tau hais tias tsis tuaj yeem nrhiav txoj hauv kev daws teeb meem. Qhov no tuaj yeem tshwm sim yog tias, hauv txoj cai, tsis muaj; lub hauv paus tsis poob rau hauv lub luag hauj lwm ntawm kev txhais; tsuas muaj cov kev daws teeb meem nyuaj uas tsis tau muab rau hauv lo lus teb; muaj cov khoob hauv cheeb tsam txhais. Txoj kev yooj yim tshaj plaws los txheeb xyuas qhov ua yuam kev yog los ntawm kev nkag mus rau txoj haujlwm f (x) thiab tshuaj xyuas qhov tsis sib haum.
