Even Casio's employees can't answer this simple question of whether or not the Algebra FX2.0Plus Graphic Calculator can graph simple equations such as: X<3 or X<-5. If someone can tell me here it can be done, please tell me how.
Simple Graph
Started by
FaithFilly
, May 06 2003 09:32 PM
4 replies to this topic
#1
FaithFilly
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Posted 06 May 2003 - 09:32 PM
#2
CrimsonCasio
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Posted 06 May 2003 - 09:56 PM
no, it cant.
but its a simple thing to graph an X= equation, why not just do that and determin the area shaded from there, its easy.
but its a simple thing to graph an X= equation, why not just do that and determin the area shaded from there, its easy.
#3
huhn_m
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Posted 07 May 2003 - 03:49 AM
it can't do X< but it can do y:
Goto GRAPH Menu
TYPE->INEQUA->Y
Nop type in the graph.
if you change axes (so x is vertical and y is horizontal) in v-window then
it will be show as it should be.
Goto GRAPH Menu
TYPE->INEQUA->Y
Nop type in the graph.
if you change axes (so x is vertical and y is horizontal) in v-window then
it will be show as it should be.
#4
FaithFilly
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Posted 07 May 2003 - 01:45 PM
Thank you guys for your replies to my question! I guess what bothered me most was not knowing if I was just too stupid to not figure out how to do something so simple on the calucator or if it was just that the calculator does not perform that function.
True, it is easy to just shade in a non-calculator graph I agree. I think I just love this calculator so much that I wanted to believe there was almost nothing mathematically that it could not do.
Also, thanks for the tip on reversing the Y axis to X. Usually I should be able to come up with an idea like turning the calculator sideways, but maybe the hang up was looking so hard in the manual for buttons to control the X values just like you can for the Y values.
True, it is easy to just shade in a non-calculator graph I agree. I think I just love this calculator so much that I wanted to believe there was almost nothing mathematically that it could not do.
Also, thanks for the tip on reversing the Y axis to X. Usually I should be able to come up with an idea like turning the calculator sideways, but maybe the hang up was looking so hard in the manual for buttons to control the X values just like you can for the Y values.
#5
XYZ
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Posted 08 May 2003 - 07:18 PM
The thing is that what you are trying to graph is not a function of x, but a range. A graph requires a set of x and y elements x<3 just means any number less than 3. If you had a function you could enter y1=f(x),[lower v-window range,3] which would not graph your function for x=>3whether or not the Algebra FX2.0Plus Graphic Calculator can graph simple equations such as: X<3 or X<-5
Hope this clarifies your understanding ?? Or perhaps the opposite...
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