Re: TIB: Re: TI-89 Basic question
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Re: TIB: Re: TI-89 Basic question
In a message dated 03/23/2000 8:58:31 PM Eastern Standard Time,
gbjohnson@yahoo.com writes:
<< I know what it is.
type out this:
solve(3=5*2+c,c)
and the result is "c=-7".
solve adds in the "c=" part to it, and then when you store that in b.
so whenever you use b in the rest of hte program, it is a string that
is in the form "c=#".
so what you can do is rewrite the program so that it doesn't need the
solve for c at all.
if you solve y=mx+b for b, you get y-mx=b. then you can substitute
that back in the program, and condense a few things and you will get
this:
()
Prgm
Local x,y,xx,yy,m
Prompt x,y,xx,yy
(yy-y)/(xx-x)ğm
Disp "Slope is "&string(m),"y="&string(m)&"x+"&string(y-m*x)
EndPrgm
that should work like you want. and it should be slightly faster and
smaller. >>
thanks.