1. Vector의 개념
(1) vector의 정의
vector는 크기와 방향을 갖고 있으며 또는 로 표시한다.
(2) vector의 크기
로 의 크기를 나타낸다.
(3) 단위 vector (unit vector)
로 정의되며, 크기가 1인 vector이다.
(4) 벡터의 평형
① =>
② 세점 A, B, C 가 일직선 위에 있기 위한 조건 :
에 대하여
cylindrical tube,
pulling out...
...another CANVAS which we cannot see. Deftly unrolls this,
fitting it carefully into the stolen paintings now-empty frame.
Re-hangs it. Stares for a beat through the opaque helmet visor.
Approves. Slips the rolled-up stolen canvas into the empty tube.
Leaves. Before we follow, we shift angle to see the replacement
canvas...
A cheerful acrylic portrait. Bozo the C
cylindrical "key" into the stainless steel casket. We pull
back to reveal the casket lies in a sealed, uncontaminated room. A group of
people in lab coats -scientists and researchers - stare through the glass
walls.
A young TECHNICIAN, working at a console, keyboards in a series of
commands.
Sswhish. The top of the steel casket swings open. Clouds of white gas
stream out -whatevers inside has bee