feat: add Plank's constant 'h'

2026-07-21 10:31:00 -07:00 · 2026-07-21 10:31:00 -07:00 · 2b7884e802
commit 2b7884e802
parent 48a1da47fb
1 changed files with 2 additions and 0 deletions
--- a/src/nodes/from_str.rs
+++ b/src/nodes/from_str.rs
@ -11,6 +11,8 @@ impl Node {
            "c" => Self::Number(Float::with_val(PREC, 299_792_458)),
            "A" => Self::Number(Float::with_val(PREC, 6.02214076e23)),
            "pi" => Self::Number(Float::with_val(PREC, f64::consts::PI)),
+            // Planck's constant, in J*s (joule-seconds)
+            "h" => Self::Number(Float::with_val(PREC, 6.62607015e-34)),
            _ => Self::Function(s.parse()?),
        })
    }