Join Yahoo Answers and get 100. It is used as a reference for comparing the heating and the electrical energy involved. The reference angle must be 90.
How to assign reference point00 at left top corner like following figure.
My gut feeling is that for people in the know this is a relatively straight. Something that is used to judge or understand something else The professor used the study as a reference point for evaluating and discussing other theories. It is used as a reference for comparing the heating and the electrical energy involved. Math Open Reference Home page.