Cov txheej txheem:
Video: Yuav ua li cas koj tig counterclockwise?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov ntsiab lus hauv pawg no (9)
- (-y, x) 90 degree rotation counterclockwise ncig lub hauv paus chiv keeb.
- (y, -x) 90 degree tig clockwise txog lub hauv paus chiv keeb.
- (-x, -y) 180 degree tig clockwise thiab counterclockwise txog keeb kwm.
- (-y, x) 270 degree tig clockwise txog lub hauv paus chiv keeb.
- (y, -x)
- (x, -y)
- (-x, y)
- (y, x)
Tsis tas li ntawd kom paub yog, dab tsi yog lub mis rau tig 90 degrees counterclockwise?
- 90 degrees , txoj cai yog (x, y) ------ (y, -x) -180 qib , txoj cai yog (x, y) ------ (-x, -y) -270 qib , txoj cai yog (x, y) ------ (-y, x)
Qhov thib ob, dab tsi yog lub mis rau tig 180 degrees counterclockwise? 180 degrees yog (-a, -b) thiab 360 yog (a, b). 360 qib tsis hloov vim nws yog tag nrho kev sib hloov los yog ib lub voj voog puv. Thiab qhov no yog rau a counterclockwise kev sib hloov . Yog koj xav ua clockwise kev sib hloov ua raws li cov no cov qauv : 90 = (b, -a); 180 = (-a, -b); 270 = (-b, ib); 360 = (ib, b).
Khaws qhov no nyob rau hauv saib, txoj kev twg yog counterclockwise mus rau sab laug los yog txoj cai?
Teb: counterclockwise qhov yog rotation los yog txav ntawm ib yam khoom uas yog nyob rau hauv lub opposite kev taw qhia ntawm tej moos. Thaum peb pom los ntawm sab saum toj, lub voj voog tig mus rau qhov sab laug , thiab los ntawm lub hauv qab kev sib hloov txav mus rau lub txoj cai.
Dab tsi yog cov cai rau counterclockwise rotations?
Cov ntsiab lus hauv pawg no (9)
- (-y, x) 90 degree rotation counterclockwise ncig lub hauv paus chiv keeb.
- (y, -x) 90 degree tig clockwise txog lub hauv paus chiv keeb.
- (-x, -y) 180 degree tig clockwise thiab counterclockwise txog keeb kwm.
- (-y, x) 270 degree tig clockwise txog lub hauv paus chiv keeb.
- (y, -x)
- (x, -y)
- (-x, y)
- (y, x)
Pom zoo:
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