I join the call for at least an nth root function. It is provided in GeoGebra by the function nroot(x,n) and in Winplot by root(n,x). I don't know specifically how these are coded- but they appear to work with x a real variable and n a non-zero integer. and I'm not sure what how it interprets n=0... but neither give an error message and GeoGebra seems to have nroot(x,0) = 0 for x in (-1,1).
GeoGebra gives a correct integral for nroot(x,3) from -8 to 27. The processing efficiency for this function is not noticeable for a human like myself- and the advantage for use by students at pre-caculus and beginning calculus would be quite positive. Sorry- but it is something that should be remedied if SAGE is to make itself attractive to less advanced users. Just my $.02. Martin Flashman -- You received this message because you are subscribed to the Google Groups "sage-edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-edu. For more options, visit https://groups.google.com/d/optout.
