Scalar and vector projections (KristaKingMath)

Learn how to find the scalar projections and vector projections of a onto b. The scalar projection is also called the component of b along a.

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Hi, I’m Krista! I make math courses to keep you from banging your head against the wall. ;)

Math class was always so frustrating for me. I’d go to a class, spend hours on homework, and three days later have an “Ah-ha!” moment about how the problems worked that could have slashed my homework time in half. I’d think, “WHY didn’t my teacher just tell me this in the first place?!”

[ColeTrain]

I appreciate the speed and clarity. No fluff, just info presented in a clear and concise manner.

[Hellomothersauce]

you're seriously an angel sent from heaven. BLESS UR SOUL FOR SAVING OUR LIVES

[emiajyduj]

Thrilled to find such talented people in the virtual world ! Thank you Ms. king~! :) Stay amazing

[barerahasan]

you are honestly the best person on this planet

[MarcMiglino]

great videos, clearly explained and very helpful.

[swathiambi]

Amazing handwriting! I thought it was a computer font initially 😃

[ranjitsoren]

She explained it so well ..👍 👍🏻 she is really an angle sent from heaven❤️❤️

[arasuramalingam]

Fantastic explanation !! Thanks Krista.

[sandeshpereira]

Hey just wanted to let you know that I think you do better problems than Patrick!! Thank you so much for helping me pass Calc!!!

[fahadalsubaiei]

I love you i just love you 💖
you saved my soul 🖤🌼

[KatlegoMmadi]

If it is was the projection form a onto b we would've divided by vector b?

[mickydave]

Amazing, short and simple explanation 10 Q good lady keep it up 👏

[mehdihashempour]

Thank you so much for all the videos! saving my life here ! :)

[peterg]

a little fast, but I like how you're explaining this. Thank you!

Whats the different between B onto A and A onto B can anyone tell ?

[shane]

There needs to be a commandment from the math gods to change the way everyone says comp_a b and proj_a b.
Away with "the scalar projection of b onto a"
In with "the scalar projection upon a, b"

[jib]

in order to find the projection of two vector can i use this formula ? or is it correct if i use ?

for example:

find the projection of f onto w?

proj f = ( f^(T) *( w / |w| )) * ( w / |w| )
w

f^(T) is the transpose of f

thanks

[neal]

how about the projection from A onto B? will i just reverse the equation? tia :)

[Priyanshusirjii]

Teacher : where are you from
Which grade math is this?

[bismeetsingh]

Sometimes, by hearting formulas is better than trying to gain intuition