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#1 2012-09-24 13:47:45
- SuperLynx
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Understanding Trig and Algebra
Hi. I'm looking for some help in understanding Trigonometry and Algebra. Specifically, vectors, matrices & scalars. I hope someone can help me, I have searched on the subject, although nothing I could understand. How do you multiple vectors, what is a dot product, I suppose best to start with that, I've already begun learning, but any resource or your own personal explanation would be helpful.
#2 2012-09-24 17:15:09
- bob bundy
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Re: Understanding Trig and Algebra
hi SuperLynx
The MathsIsFun teaching pages cover the dot product. I would recommend this:
http://www.mathsisfun.com/algebra/vecto … oduct.html
And at the bottom there are some "test yourself" questions.
Why not start there ?
Also, if you search my posts you'll find I've helped people in the past on vector topics.
Post here if there's still a difficulty.
Bob
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
#6 2012-09-25 17:40:00
- bob bundy
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Re: Understanding Trig and Algebra
hi SuperLynx
Vectors are used in many ways. I was trying to show a movement vector of 6 across and 2 up. That's why I put an arrow on the red line. Sometimes vectors are written as a row rather than a column. I prefer the column format because you don't have any confusion with coordinates.
Have a look at
http://www.bbc.co.uk/bitesize/higher/ma … evision/1/
Bob
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei