Briefly |
You can always type a formula in the editor. Most "traditional" keyboard shortcuts for math work. Selection is important. |
Use * for multiply, / for divide.
Most familiar functions work using the most common abbreviation: sin, random, floor, ln, log, arcsin, exp, sgn, to name a few. These functions require parentheses around their arguments, as in sin(x). More about built-in functions.
Make square root with control-shift-R.
To get the constant pi, type the Roman letters "pi."
Typing "^" (-6) moves the cursor up into "exponent land." Once there, whatever you type becomes an exponent. Type right-arrow or down-arrow--or click--to get down.
Comparison Operators
Type =, >, or < for equal to, greater than, or less than respectively.
For "or equal to," hold down when you type > or <
That is, for greater-than-or-equal-to, press -period; for less-than-or-equal-to, press -comma.
Note: the equals sign is always a comparison operator in Fathom. That is, a = 3 is always either true or false, depending on the value of a. That expression, a = 3, never means, "let a equal 3."
Boolean Operators
For these operators, press the button in your keypad or use the following:
|
"Paired" Keys
Vertical bar "|" makes a pair of absolute-value signs.
The double-quote key makes a pair of quotes.
Open-parenthesis ( makes a pair of parentheses.
Navigation
The left and right arrow keys move you left and right.
Close parenthesis ) moves you out of the current set of parentheses.
The quote key moves you out of a pair of quotes if you're inside one.
Selection
Holding down the key and clicking or pressing arrows extends the selection.
Pressing the up arrow selects the current expression.
Repeatedly pressing the up-arrow selects larger and larger expressions.