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 / /