Variables & Aliases:

• row, col: Current position.
• a, b, c...: References the value of that column in the current row.
• above, prior, previous, last: All reference the value directly above the current cell (cell(0, -1)).
• seed: reference the seed value (same as cell(0, -1) for the first row and cell(0, -2) for the second row).

Functions:

• cell(x, y): Relative lookup. x = horizontal offset, y = vertical offset. (Must be ≤ 0).
• Math: Use PI, SQRT2, sin(), abs(), pow(base, exp), etc., without the 'Math.' prefix.

Further Examples:

• Arithmetic sequence: above + 10 (Seed is start value).
• Fibonacci-style: last + cell(0, -2).
• Running total of Col A: a + last.