in src/latex2sympy2_extended/symbols.py [0:0]
def get_symbol(latex_str: str, is_real: bool | None = True, lowercase_symbols: bool = False):
latex_str = latex_str.strip()
letter = GREEK_LETTER_MAP.get(latex_str.replace('"', ''))
if letter is None:
letter = latex_str
if letter.startswith('\\'):
letter = letter[1:]
if lowercase_symbols:
letter = letter.lower()
if letter in sympy_singleton_map:
return sympy_singleton_map[letter]
else:
return sympy.Symbol(letter, real=is_real)