Exponents

The superscript indicator (dots 45) is used to enter an exponent expression in the equation editor.

When typing an exponent, the baseline indicator (dot 5) is used to terminate the exponent and return to the baseline (after the exponent) to allow additional input after the exponent expression.

When an exponent is applied to more than one symbol, be sure that the entire expression contained in the base is selected (underlined with dot 8) before typing the superscript indicator to ensure the exponent is applied to the proper base.

Parentheses may be supplied when the base or the exponent involves more than a single symbol.

When typing a nested exponent, that is, an exponent that contains an exponent the Nemeth braille output will supply the nested exponent indicators, which need not be supplied from the keyboard.

Exercises

Type the following expressions into the equation editor below and verify that the equation editor produces the proper Nemeth braille output in each case. Also verify that a sighted friend can read each expression you have typed as it is displayed on the screen. Feel free to try your own examples, and to explore other combinations of exponent expressions and nested exponents.

• x^2 + 2x + 1
• (x + 1)^2
• 2^x + 3^x
• 2^(x + y)
• 2^x^y