Answer prose and product-owner round 2: one idea per sentence in items 77 and 81, item 77's open API points, and NaN explained where the decision names it

2026-10-04 12:17:56 +02:00
parent fba410c83f
commit 665c532f8c
3 changed files with 6 additions and 7 deletions
@@ -255,8 +255,8 @@ assumes a 64-bit int; on a 32-bit target it could overflow and panic.
 load error; the fold stops where an operand varies, so `a/(b*c)` with `b` fixed at `0`
 and `c` varying loads and prints `Inf` every draw — catching it needs zero-absorbing
 algebra for a shape nobody writes. A [typed column](../README.md#datatype) bounds its operands
-instead and refuses a divisor it cannot keep from zero. `Inf` and `NaN` in a string column
-work against goals 6.1 and 4 until `todo.md` item 81 refuses them there too.
+instead and refuses a divisor it cannot keep from zero. An operand that is sometimes not a
+number prints `NaN` the same way. `Inf` and `NaN` in a string column work against goals 6.1 and 4 until `todo.md` item 81 refuses them there too.

 ## In data, a default written out and a constant spelled as a sample are load errors