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U¿ytkownik "Murray Eisenberg" <murray at math.umass.edu> napisa³ w wiadomo¶ci news:gmgv0g$33k$1 at smc.vnet.net... > So far as I have seen, almost any recently published, high-selling > textbook in calculus -- as distinct from advanced calculus or analysis > -- aimed at the U.S. market uses ln rather than log for the natural > logarithm. > > No wonder students are confused when they go on to a more advanced > course and suddenly it's log, not ln. > > Then of course there's the issue that computer scientists often use log > to mean base-2 log. Question: how high-selling must be a book in USA to *prove* that pi is equal exactly 3 ? What is a criteria for "advanced book"? Answer: useage Log instead ln... What have AMS estabilished about ln/log notation? slawek BTW, SQR is the square-root in BASIC, but SQR is the square of a number in Pascal.