Don't calculate pi all the time

tivars/numeric.py

@@ -8,21 +8,7 @@
 from .data import *
 
 
-with dec.localcontext() as ctx:
-    ctx.prec = 16
-    pi, prev = 3, 0
-    t = dec.Decimal(3)
-
-    n, na, d, da = 1, 0, 0, 24
-    while pi != prev:
-        prev = pi
-
-        n, na = n + na, na + 8
-        d, da = d + da, da + 32
-        t = (t * n) / d
-        pi += t
-
-    ctx.prec = 14
+pi = dec.Decimal("3.141592653589792")
 
 
 def replacer(string: str, replacements: dict[str, str]) -> str: