A device of the present invention is an exponential calculation device for calculating x{circumflex over ( )}(a/b) (where a and b are each an integer constant) for a given input value of x. The device includes: an input control section for outputting a value of x, wherein xx when xA (where A is a threshold...http://www.google.com.au/patents/US6363407?utm_source=gb-gplus-sharePatent US6363407 - Exponential calculation device and decoding device
