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CAS: Combining Logarithms - DrD - 07-09-2019 02:27 PM
From an intermediate algebra class example:
[attachment=7452]
How would this be implemented in the hp prime?
-Dale-
RE: CAS: Combining Logarithms - victorvbc - 07-09-2019 05:25 PM
Hi.
Pretty sure it's not the best way, but I did it like this:
Code:
#cas
combineLog(expr1,resBase):=
BEGIN
LOCAL res;
expr1:=lncollect(expr1);
res:=solve(expr("expr1=logb(k,resBase)"),k);
RETURN(logb(res,resBase));
END;
#endJust make sure CAS has "Use i" enabled.
-Victor
RE: CAS: Combining Logarithms - DrD - 07-09-2019 06:38 PM
(07-09-2019 05:25 PM)victorvbc Wrote: Just make sure CAS has "Use i" enabled.
-Victor
Thanks, I didn't have "Use i" enabled.