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1-6-9
Input
u T key set
Tapping the T key displays keys for inputting trigonometric functions, and changes the
T softkey to I. You can tap this key to toggle between T and 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 T key set.
← = →
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 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
9 keyboard.
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 “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”.