1-6-17

Input

u V key set

Tapping the V key displays keys for inputting single-character variables, and changes the V softkey to I. You can tap this key to toggle between V and the initial 2D keyboard. Tapping the Ekey switches to a key set for inputting upper-case single-character variables.

E

Tip

As its name suggests, a single-character variable is a variable name that consists of a single character like “a” or “x”. Each character you input on the V keyboard is treated as a single- character variable. You cannot use the V keyboard to input multiple-character variable names like “ab” or multiple-character strings. You must use the alphabet (abc) keyboard when you want to input a multiple-character string. For more information, see “Using Single-character Variables” on page 1-6-12.

For information about the Dkey that appears in the lower right of all of the 2D keyboard key sets, see “Using the Answer Variable (ans)” on page 2-2-2.

Note that natural input is available in most applications of the ClassPad. Natural input cannot be used in the geometry measurement box or when entering data into a list.

uTo use the 2D keyboard for natural inputExample 1: To input 1 + 3

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(1)On the application menu, tap Jto start the Main application.(2)Press the ckey.(3)Press the kkey, and then tap )to display the 2D keyboard.(4)Tap Nand then tap b to input the numerator.

(5)Tap the input box of the denominator to move the cursor there, or press c and then tap f.

(6)Press e to move the cursor to the right side of 1/5.

Instead of using e to move the cursor, you could also tap with the stylus at the cursor destination.

(7)Tap +.(8)Tap N, and then repeat steps (4) through (6) to input 3/7.(9)After everything is the way you want, press E.

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