They say there's no such thing as bad publicity. Indeed, a recent New York magazine article — with the dubious title "The Trouble With Liberty" — includes pithy quotes from Mises Institute president Doug French, which should appeal to open-minded readers.

But even though the New York author, Christopher B
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It is worth mentioning notation at this point. You may have noticed that the minus sign used to denote a negative number is shorter, closer to the number and raised, compared with the minus sign used to denote subtraction. It is important to distinguish between the two, and it can help to think of âˆ’3, say, as â€˜negative 3â€™ rather than â€˜minus 3â€™. In the calculation 8 âˆ’ 3 (8 subtract 3), the minus sign is an operator, an instruction to subtract; in âˆ’3,
Author(s): The Open University

You have seen how any vector given in geometric form, in terms of magnitude and direction, can be written in component form. You will now see how conversion in the opposite sense may be achieved, starting from component form. In other words, given a vector aÂ =Â a 1 iÂ +Â a 2 j, what are its magnitude |a| and direction Î¸?

The first part of this question is dealt with using Pythagorasâ€™ Theorem: the magnitude of a v
Author(s): The Open University

How to Figure Out the Perimeter of a Circle
When figuring out the perimeter, or circumference, of a circle, the goal is to find the length around the shape. Use the radius and the diameter to figure out the perimeter of a circle with help from this author and teacher.
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