5 Special functions
As in classic digital computer programming, there are special functions that frequently occur in analog computer setups, such as inverse functions (like (square) roots), limits, hysteresis, etc. This chapter describes typical “library” functions which can be used as building blocks for more complex programs. As in the algorithmic domain, especially among Perl programmers, the saying “there is more than one way to do it” holds true for analog computer programs. The functions described here are typically neither the only possible implementations nor necessarily the best.
In case of doubt or when searching for other functions, the vast classic literature should be consulted. The definitive books [KORN et al. 1964] and [
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