Lin Alg Flashcards

1
Q

Samma plan

A

(uxv)w=0

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2
Q

Ortogonala (skär)

A

u•v=0

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3
Q

Parallella

A

u=t•v , t<0

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4
Q

Projektionssformeln

A

v=((v•u)/(|u|^2))u

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5
Q

uxv

A

y1z2-z1y2
z1x2-x1z2
x1y2-y1x2

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6
Q

Skalärprodukt, när används den?

A

-avståndet mellan punkt och linje

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7
Q

Krysspunkt, när använder man den?

A

-räkna ut n

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8
Q

Avståndet från punkt till plan

A

|PQ|=|tn|

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9
Q

Skärning mellan linje och plan

A

-Stoppa in linjen i planet (x,y,z)
-stoppa in t vi fick ut i linjen, vilket ger punkten

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