- #1

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## Main Question or Discussion Point

So I am asked to rotate by 45 degrees about the y-axis.

With the power of the net i found that it is;

[ cos(45) 0 sin (45);

0 1 0;

-sin(45) 0 cos(45)]

i really would like to understand HOW they get this.

THANKS in advance!!!!!!!

With the power of the net i found that it is;

[ cos(45) 0 sin (45);

0 1 0;

-sin(45) 0 cos(45)]

i really would like to understand HOW they get this.

THANKS in advance!!!!!!!