# What's a Vector in Mathematics?

I'm trying to learn about Vectors in Math, but I can't find a website where I can understand anything, please help me understand by posting a good link, or a good explanation of what a vector in math is.............. Note by A Former Brilliant Member
11 months, 1 week ago

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## Comments

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A vector would be used to show the distance and direction something moved in. If you ask for directions, and a person says "Walk one kilometer towards the North", that's a vector. If he says "Walk one kilometer", without showing a direction, it would be a scalar.

@Percy Jackson, this is for you...

- 11 months, 1 week ago

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That is physics, where a vector has both direction and magnitude, I'm talking about vectors in Math, as in Euclidian geometry and Euclidian vectors @Hamza Anushath, thanks for trying!

- 11 months, 1 week ago

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@Percy Jackson, they are the same thing! Check it out yourself...

- 11 months, 1 week ago

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Oh! Thanks, I thought that they were different things, as it was in in the 12th std Syllabus of maths. @Hamza Anushath

- 11 months, 1 week ago

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But we draw them on diagrams instead...

- 11 months, 1 week ago

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And a vector $\vec{z}$ (\vec{z}) is represented like this: $(a,b)$, which denotes if you put its starting point on the origin, it’s endpoint is on $(a,b)$.

- 11 months, 1 week ago

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Doesn't the way you represent vectors differ from country to country? E.g., I've always learnt to write vectors as $\begin{pmatrix} a \\ b \end{pmatrix}$.

- 11 months ago

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$\begin{pmatrix} a \ b \end{pmatrix}$ - YOu mean this @Lorenz W.

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No, in a way where a is located on the top of b.

- 11 months ago

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$\begin{pmatrix} \frac{a}{b} \end{pmatrix}$

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Yes kind of like that, if you'd remove the linke between a and b )

- 11 months ago

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$\begin{pmatrix} a \\ b \end{pmatrix}$ @Lorenz W. put double \ after a instead of \ in your latex :)

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How did you do that in Latex?

- 11 months ago

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@Lorenz W. put double \ after a instead of \ in your latex :)

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Ok. Thank you

- 11 months ago

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\s(s\begin{pmatrix} a \s\ b \end{pmatrix} \s) but kick all the s out

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Just a \choose b $a\choose b$

- 11 months ago

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Hi Percy. This is a really amazing "interactive textbook" all about linear algebra. Hope you find it helpful!

- 11 months ago

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Thanks David!

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