ClassPad Report
Graph with domain
This is a short report showing how to graph the domain of a function.
With
We can use with ( | ) function to show the domain when we graph.
When the function is,
| f(x)= | x | domain x<-1 |
| -x | domain 1<=x<=1 |
| 1 | domain 1<x |
the graph is below.
When we type 1<x and x<1, the ClassPad automatically changes it to 1<x<1.
BUT we CAN NOT draw the graph.
This is a poor specification that Classpad should improve.
Im sorry to say such a negative comment about the ClassPad. But I love the
ClassPad and Im sure the engineers listen to us and improve the software.
Piecewise
Piecewise function enables us to draw a graph with domain.
When the function is,
| f(x)= | x | domain x<-1 |
| -x | domain 1<=x<=1 |
| 1 | domain 1<x |
we can also use piecewise function.
When we use the piecewise function, the graphs are connected to each other.
And we can use the domain 1<x<1. Thank you ClassPad!
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