Jun 13, 2025 · Jun 12, 2025
diff --git a/lib/matplotlib/cbook.py b/lib/matplotlib/cbook.py
    Return the number of significant digits to %g-format *value*, assuming that
    it is known with an error of *delta*.
    """
    # For inf or nan, the precision doesn't matter.
    if not math.isfinite(value):
        return 0
    if delta == 0:
        if value == 0:
            # if both value and delta are 0, np.spacing below returns 5e-324
    # digits before the decimal point (floor(log10(45.67)) + 1 = 2): the total
    # is 4 significant digits.  A value of 0 contributes 1 "digit" before the
    # decimal point.
    # For inf or nan, the precision doesn't matter.
    return max(
        0,
        (math.floor(math.log10(abs(value))) + 1 if value else 1)
        - math.floor(math.log10(delta))) if math.isfinite(value) else 0
        - math.floor(math.log10(delta)))


 def _unikey_or_keysym_to_mplkey(unikey, keysym):
Original file line number	Diff line number	Diff line change
Expand Up		@@ -2208,6 +2208,9 @@ def _g_sig_digits(value, delta):
		Return the number of significant digits to %g-format value, assuming that
		it is known with an error of delta.
		"""
		# For inf or nan, the precision doesn't matter.
		if not math.isfinite(value):
		return 0
		if delta == 0:
		if value == 0:
		# if both value and delta are 0, np.spacing below returns 5e-324
Expand All		@@ -2221,11 +2224,10 @@ def _g_sig_digits(value, delta):
		# digits before the decimal point (floor(log10(45.67)) + 1 = 2): the total
		# is 4 significant digits. A value of 0 contributes 1 "digit" before the
		# decimal point.
		# For inf or nan, the precision doesn't matter.
		return max(
		0,
		(math.floor(math.log10(abs(value))) + 1 if value else 1)
		- math.floor(math.log10(delta))) if math.isfinite(value) else 0
		- math.floor(math.log10(delta)))


		def _unikey_or_keysym_to_mplkey(unikey, keysym):
Expand Down