B: These math lines are not required to test various values for θ.
20070201
A: Substituting a value (
here) for θ in the expression in line 1 executes (sinθ)2 + (cosθ)2
π
6
in line 3, and displays the result in line 4 (1). In this example, substituting any value in line 1 and pressing w will produce a result of 1.
If we wanted to test various values for θ without recalculating all of the math lines underneath it, we could insert a stop line at the location shown above. Then, each time we change the value of θ and press w, the calculator will re-calculate (sinθ)2 + (cosθ)2 and then stop.
10-3-7
Inputting and Editing eActivity File Data
uStop Line Example
The following screen shows how you can use stop lines to group calculation steps.
A
B