1-6-9 Input

u 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 9 keyboard.

Tip

•Tapping the key inputs the “solve” function, while tapping the key inputs the “dSolve” function. See page 2-7-39 for information about these functions.

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

u Kkey set

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

9keyboard.

Tip

•Tapping the key inputs the “rSolve” function. See page 2-7-40 for information about this function.

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

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