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# Tests constants of the math module available only with MICROPY_PY_MATH_CONSTANTS.
try:
import math
from math import isnan
math.tau
except (ImportError, AttributeError):
print("SKIP")
raise SystemExit
print(math.tau == 2.0 * math.pi)
print(math.copysign(1.0, math.tau))
print(math.inf == float("inf"))
print(-math.inf == -float("inf"))
print(math.copysign(1.0, math.inf))
print(isnan(math.nan))
print(isnan(-math.nan))
print(math.copysign(1.0, math.nan))
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