Deduction of the Real Integral Representation of the Unit Function from the Imaginary Integral Representation

摘要

The unit function is represented by the real integral and the imaginary integral. Then the real integral representation is to be deduced from the imaginary integral. A method is shown in the text book of transient phenomenon published by the Institute of Electrical Engineers of Japan. But considered pricisely this method is wrong. A correct method is shown in this paper.