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Re: HP50G.. is nice when learned

2009-02-22 by Juan C.

You are suppose to see the graphic of the equation Z=X^2+Y^2, probably 
the parameters of the graphic are not the adequate, purge the variable 
PPAR and do it again, press [VAR], the single quote mark and PPAR from 
the soft menu and then [ENTER] ans then [TOOL]  and PURGE from the soft 
menu.

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