How Calcdown works
Calcdown opens directly as an empty, infinite calculation sheet. Click anywhere to add a field and type a value or formula.
Calculate a value
Enter an expression followed by =, for example 4 * 25 =. Calcdown writes the result and keeps the expression live for later edits.
Define and reuse variables
Write rate=0.2 to define a variable, then use it in another field: 100 * (1 + rate) =.
Build tables and charts
Move fields into rows or columns. Select a group to calculate aggregate values, fill a sequence, or create a chart. Rectangular selections offer chart actions by rows or by columns.