Emblemata: The emblem books of Andrea Alciato

A study of the life and works of the legal scholar and humanist, Andrea Alciato (1492-1550), the originator of the emblem book. The nature of the emblem is elucidated and placed in its historical, intellectual and artistic contexts, with special attention paid to the many and varied published manifestations of Alciato???s emblems from 1531 to 1621.published or submitted for publicationnot peer reviewe

Derivation of a tangent function using an integrated circuit four-quadrant multiplier

A tangent function generator is provided which utilizes input signals proportionate to the sine and cosine of a given angle. The equipment accomplishes a trigonometric manipulation which forms an output signal substantially independent of the input reference voltage but proportional to the tangent of the angle. The device uses a multiplier and operational amplifier