Maybe found a bug... Lash sh was not initialized to 0 after each calculation

Samo Penic

2012-07-09 8e58b474db332bf54c3e91684d8ac8d3f14ef11b

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Original written by Dan Kroll in FORTRAN. Code was then largely adapted and commented by Miha Fosnaric-Fosni. Rewritten into C by Samo Penic-Peni, with help of Miha's extensive explanations.