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© 2012 Texas Instruments Educaon Technology Page 17
A menu of maths templates
Derivave of
x
2
+2x-3 at x=5
Integral of x
2
+2x-3
between 1 and 5
Many of the handheld’s keys provide templates to enable you to enter a range of mathemacal expressions. For
example, in this tutorial you have used the keys /q for square roots and l for powers. In both cases a small
box appears in the expression inving you to enter values. Some care is necessary when entering more complex
expressions using such templates.
For example, try entering √3+√5. In order to move out of the box aer entering 3 you need to press either e
or ¢. This explains the use of ¢ in the key sequence in part b above.
More complex templates are available from the Maths
Templates Menu that can be opened by pressing t.
To make a selecon from this menu you need to move the
highlight with the Touchpad and press ·.
Those opons which have a bold T superimposed are
not available on the numeric version of TI-Nspire as they
require a Computer Algebra System (which cannot be
used in most exams).
Try using a template to produce the sums of the rst 20
square numbers. You will need to use an alphabec key
such as N to enter the variable name. Press e or use
the Touchpad to move from one small box to the next.
Now produce the sums of the rst 20 cubic numbers. The
easiest key sequence to use is (probably!):
££·¡¡.3·
Other useful templates are the denite integral template,
and the dierenal at a point template.
These can also be accessed from the Calculus Menu b4.