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Using plusminus sign in functions
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Hi,
I was wondering why Geogebra won't let me create a function such as f(x)=±1, f(x)=10^±1 or anything containing the plusminus sign. It simply says "Invalid input". Is Geogebra just not able to create functions including plusminus signs yet, or is it simply not possible to create a function using a plusminus sign in general? If someone knows the answer to this, I would be very helpful if you could explain why this is :)
Posted by Espen Rong
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Functions can have only one output by definition, so ± is not allowed:
https://en.wikipedia.org/wi...)
Try eg
Curve[t^2, t^3, t, 5, 5]
and
x^3+y^2=1
to plot nonfunctions
Thank you very much for your answer :)
I was also wondering about another thing: What about equations? For example, if i wanted to solve the two equations (related to my chemistry class) 10=(0.2+x*0.5)/(0.01x*0.5) and 1/10=(0.2+x*0.5)/(0.01x*0.5), shouldn't I be able to write 10^±1=(0.2+x*0.5)/(0.01x*0.5) in Geogebra and get two answers instead of solving the two equations seperately? If not, why?
"Using plusminus sign in functions" is a contradiction in itself. A function is characterized in that associated with each xvalue is exactly one yvalue (and not two different ones).
In GeoGebra, equations have to be of the form
function = function
to make things consistent throughout
hello
no comments
i know conic is not a function but i'd like to use c(0.5) or {c(0.5)}
saludos
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