python math_error ai_generated true

ValueError: math domain error

ID: python/valueerror-math-domain

Also available as: JSON · Markdown
92%Fix Rate
92%Confidence
50Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
311 active — — —

Root Cause

Math operation with invalid input. sqrt(-1), log(0), asin(2), etc.

generic

Workarounds

  1. 95% success Validate input before calling: if x > 0: math.log(x) 
    if x > 0: math.log(x)

    Sources: https://docs.python.org/3/library/math.html

  2. 88% success Use cmath for complex number support: cmath.sqrt(-1) → 1j 
    import cmath
result = cmath.sqrt(-1)  # returns 1j

    Sources: https://docs.python.org/3/library/cmath.html

Dead Ends

Common approaches that don't work:

  1. Use try/except and return 0 65% fail

    Returns wrong result — NaN or special handling is more appropriate

  2. Use abs() on all inputs 70% fail

    Changes the mathematical meaning — log(abs(x)) != log(x)

Error Chain

Frequently confused with: