Vector intro for linear algebra
5:49
Khan AcademySal Khan
Vector intro for linear algebra
A vector has both magnitude and direction. We use vectors to, for example, describe the velocity of moving objects. In this video, you'll learn how to write and draw vectors.
1 个月前
短视频
A vector field assigns a vector to every point in a region of space, allowing us to visualize how a quantity changes from place to place. Each vector has both a direction and a magnitude, so a vector field captures not just the presence of a phenomenon but also how it flows, rotates, or expands. You can think of it like a map of tiny arrows: at every point, the arrow tells you “which way” and “how strongly” something is acting. In physics, these arrows might represent gravitational pull, electri
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A vector field assigns a vector to every point in a region of space, allowing us
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