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Daabacaadan, waxaan ku eegi doonaa qeexida, tarjumaadda joomatari, garaafka shaqada, iyo tusaalooyinka moodeelka tirada togan/negative iyo eber.
Go'aaminta moodeelka nambarka
Modul nambarka dhabta ah (mararka qaarkood loo yaqaan qiimo buuxda) waa qiimo la mid ah haddii tiradu ay togan tahay ama la mid tahay ka soo horjeeda haddii ay taban tahay.
Qiimaha saxda ah ee tirada a lagu muujiyay xariiq toosan oo labada dhinac ah - |a|.
nambar ka soo horjeeda ka duwan yahay calaamadda asalka ah. Tusaale ahaan, lambarka 5 lidku waa -5. Xaaladdan, eber ayaa ka soo horjeeda lafteeda, ie
Fasiraadda Joometri ee moduleka
Modulka a waa fogaanta asalka (O) ilaa hal dhibic A on dhidibka isku xirka, taas oo u dhiganta tirada aIe
|-4| = |4| = 4
Sawirka shaqada oo leh Modul
Sawirka shaqo siman y = |х| sida soo socota:
- y=x la x> 0
- y = -x la x <0
- y = 0 la x = 0
- goobta qeexitaanka: (-∞ +∞)
- kala duwan: [0+∞).
- at x = 0 jaantusku wuu jabaa.
Tusaale dhibaato
Waa maxay cutubyada soo socda |3|, |-7|, |12,4| iyo |-0,87|.
Go'aanka:
Marka loo eego qeexitaanka sare:
- |3| = 3
- |-7| = 7
- |12,4| = 12,4
- |-0,87| = 0,87