1.6 KiB
epic, story, title, status
| epic | story | title | status |
|---|---|---|---|
| 6 | 6.7 | Rounding Functions | draft |
Epic 6 — Advanced Math & Functions
Goal: Scientific, financial, and power-user math.
Story 6.7: Rounding Functions
As a CalcPad user, I want rounding functions including natural-language "round to nearest" and standard floor/ceil/round, So that I can control numeric precision in my calculations.
Acceptance Criteria:
Given the user writes round 21 up to nearest 5
When the engine evaluates
Then the result is 25
Given the user writes round 22 down to nearest 5
When the engine evaluates
Then the result is 20
Given the user writes round 23 to nearest 5
When the engine evaluates
Then the result is 25 (standard rounding: 23 is closer to 25 than 20)
Given the user writes floor(3.7)
When the engine evaluates
Then the result is 3
Given the user writes floor(-3.2)
When the engine evaluates
Then the result is -4 (floor rounds toward negative infinity)
Given the user writes ceil(3.2)
When the engine evaluates
Then the result is 4
Given the user writes ceil(-3.7)
When the engine evaluates
Then the result is -3 (ceil rounds toward positive infinity)
Given the user writes round(3.456, 2)
When the engine evaluates
Then the result is 3.46 (rounded to 2 decimal places)
Given the user writes round(3.456, 0)
When the engine evaluates
Then the result is 3
Given the user writes round(2.5)
When the engine evaluates
Then the result is 3 (round half up, or the chosen rounding convention is documented)