Wrapping awkwardly shaped Christmas presents is always a headache, but here's the formula for perfect gift wrap.

This calculation can be used for hypothesis testing in statistics Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive ...

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Learn how the general depreciation system (GDS) works within MACRS, its methods, tax implications, and how it accelerates asset depreciation.

This file provides functions and modules that construct shapes from a list of cross sections. In the case of skin() you specify each cross sectional shape yourself, and the number of points can vary.