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Interactive interface to the yacas
yacmode()
Output of yacas is returned.
The user types valid yacas input and presses return. Type 'quit' to return to R prompt.
http://yacas.sourceforge.net
# NOT RUN { # } # NOT RUN { yacmode() (x+y)^3-(x-y)^3 Simplify(%) q # } # NOT RUN { # }
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