Tips and tricks for CAS input
References to other rows
Static row references copy the output and won't be updated if the referenced row is subsequently changed:
- Enter # to copy the previous output into the new row.
- Enter
#5 to copy the output of row 5 into the new row.
- Enter $ to insert a reference to the previous output.
- Enter $3 to insert a reference to the output of row 3.
Task
Make references to other rows by following the instructions below.
Instructions
- Put in
a²-2*a*bin the second row. - Calculate
#1-$2in the third row. - Change the input of the first row into
(a-b)²and check that the output in row 3 hasn't changed. - Change the input of the second row into
b²-2*a*band check that the output in row 3 has changed.
Try it yourself...
Replacing parameters in the command syntax
After selecting a Command from the list of suggested commands, the first parameter is automatically highlighted and can be easily replaced with your input. To highlight the next parameter, either type a comma or press the tab key.