1-6-9 Inputu Tkey set

Tapping the Tkey displays keys for inputting trigonometric functions, and changes the Tsoftkey to I. You can tap this key to toggle between Tand the default 9 keyboard. Tapping the = (hyperbolic) key switches to a key set for inputting hyperbolic functions. Tap the = key again to return to the regular Tkey set.

=

u - key set

Tapping the - key displays keys for inputting differential and integral calculus expressions, permutations, etc., and changes the - softkey to I. You can tap this key to toggle between - and the default 9keyboard.

Tip

Tapping the key inputs the “solve” function, while tapping the key inputs the “dSolve” function. See pages 2-8-43 and 2-8-44 for information about these functions.

For information about each of functions or symbols, see “2-4 Function Calculations”.

u K key set

Tapping the K key displays keys for inputting “<”, “”, and other special operators, and changes the K softkey to I. You can tap this key to toggle between K and the default

9keyboard.

Tip

Tapping the key inputs the “rSolve” function. See page 6-3-5 for information about this function.

For information about each of the functions and symbols, see “2-4 Function Calculations”.

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