To select the formatting style for math output notation, tap the "Output" button and choose a setting, or use the "output" command.

The "output" command is used to determine which of two styles of mathematical notation will be used when displaying expressions and equations:

The keyword "1d" selects one-dimensional notation. It is the same as the notation used to enter expressions and equations from the command line.

e.g. 6(i-(y+z)/2)=p(1+2(3)/(4((4+x)/5-1)))

The keyword "2d" selects two-dimensional notation. It approximates standard math notation by depicting fractions in the traditional numerator-above-denominator format, centering expressions, drawing large parentheses, and hiding redundant parentheses. "2d" is the default format.

e.g. / y + z\ / 2(3) \

6 ( i - ----- ) = p | 1 + --------------- |

\ 2 / | /4 + x \ |

| 4 ( ----- - 1 ) |

\ \ 5 / /

Those examples showed some of the program's equation formatting features. The display mimics traditional, two-dimensional mathematical notation in the following ways:

- Equations are centered around the equals (=) sign.
- Fractions are shown in numerator-above-denominator layout.
- Sub-expressions are centered horizontally and vertically.
- Large parentheses are drawn around tall expressions that need them.
- Redundant parentheses are not shown.

The program also offers a simpler, one-dimensional output mode that matches the style used when entering equations at the command line. To switch to the simpler, one-dimensional output mode, use the "output 1d" command:

> output 1d

* One-dimensional output mode.

Here is the previous variable definition using one-dimensional output and medium detail:

> detail medium

* Detail set to medium.

> (1-1/(2x))x=5

Solving for x:

(1-1/(2x))x=5

x-1/2=5

x=5+1/2

x = 5.5 (or 11 / 2, or 5 & 1 / 2)

Since one-dimensional output mode matches the input format, it can be useful for cutting-and-pasting program output back into the program itself.

To switch back to the default, two-dimensional output mode, use the "output 2d" command:

demo> output 2d

* Two-dimensional output mode.