\h# SSKJr SSKJr SSKJr SSKJrJ r J r SSK J r Sr SrS rS rS rS rS rS\ \3\\S3\S\ \3\\S3S\ \3\\S3\S\ \3\\S3S\ \3\\S3\S\ \3\\S3SSSSSSS\ \3\\S3\S\ \3\\S3S\ \3\\S3\S\ \3\\S3S\ \3\\S3\S\ \3\\S30r\R+5VVs0sHupX_M snnrS\ \3S\S\ \3S S\ \3S!\S\ \3S"S\ \3S#\S\ \3S$SS%SS&SS'S\ \3S(\S\ \3S)S\ \3S*\S\ \3S+S\ \3S,\S\ \3S-0r\\S3S.\\S3S/\\S3S0\\S3S1\\S3S2\\S3S3SS4SS5SS6\\S3S7\\S3S8\\S3S9\\S3S:\\S3S;\\S3S<0rS=rS>S?S@/0r\"SASB9SESCj5rgDs snnf)F) import_module)doctest_depends_on)compile)LarkLaTeXParserTransformToSymPyExprparse_latex_lark)LaTeXParsingErrorz \s*[{]*\s*z \s*[}]*\s*z (?)check_matrix_delimiters..Ysad)keyr )NNNNNz...r zExtra 'z ' at index z or missing corresponding 'z' in LaTeX string: z Expected 'z' to close the 'z but found 'z of LaTeX string instead: ) MATRIX_DELIMSrcompileextendfinditerspangroupsortlenappendzipEND_DELIM_REPRBEGIN_DELIM_REPRMATRIX_DELIMS_INVr ) latex_strspans begin_delim end_delimpqmry sellipsiss eellipsiseerrcorrect_end_regexs rcheck_matrix_delimitersr7Ks3 E$ !+. [ ! Y  -.ZZ -BD-B$$!'')$"$-BD E +,::i+@B+@a""!'')" "+@B C% JJNJ$ 5zA~  -.$'cc E!$Q$K$@ A$@&1XqX1X$@E A  aD2I q5AI aD2I s9~ IAI Q4> !QqTF+adV4'(9!A$(?@AB''0k)a.1A[ "C $C( ( Q4<QqTF+adV4%mAaD&9:;<''0k)a.1A[ "C $C( ()!A$/qTAXE2 qTC N2E Q4$ $%&789:$$%aD6QqTF;qTF+adV4&&/[Q4!1E0F[ "C $C( (]DB Bs /I5 /I: %I?) parse_latexantlr4lark)r9r:)modulesc[U5 US:Xa"[SSS/0S9nUbURX5$gUS:Xa [U5$[ SUS 35e) aConverts the input LaTeX string ``s`` to a SymPy ``Expr``. Parameters ========== s : str The LaTeX string to parse. In Python source containing LaTeX, *raw strings* (denoted with ``r"``, like this one) are preferred, as LaTeX makes liberal use of the ``\`` character, which would trigger escaping in normal Python strings. backend : str, optional Currently, there are two backends supported: ANTLR, and Lark. The default setting is to use the ANTLR backend, which can be changed to Lark if preferred. Use ``backend="antlr"`` for the ANTLR-based parser, and ``backend="lark"`` for the Lark-based parser. The ``backend`` option is case-sensitive, and must be in all lowercase. strict : bool, optional This option is only available with the ANTLR backend. If True, raise an exception if the string cannot be parsed as valid LaTeX. If False, try to recover gracefully from common mistakes. Examples ======== >>> from sympy.parsing.latex import parse_latex >>> expr = parse_latex(r"\frac {1 + \sqrt {\a}} {\b}") >>> expr (sqrt(a) + 1)/b >>> expr.evalf(4, subs=dict(a=5, b=2)) 1.618 >>> func = parse_latex(r"\int_1^\alpha \dfrac{\mathrm{d}t}{t}", backend="lark") >>> func.evalf(subs={"alpha": 2}) 0.693147180559945 antlrz&sympy.parsing.latex._parse_latex_antlrfromlistX) import_kwargsNr:z Using the 'z/' backend in the LaTeX parser is not supported.)r7rr8rNotImplementedError)r2strictbackend_latexs rr8r8s|VA' 4%u-/  %%a0 0  F ""!Ky9?#?@ @rN)Fr=)sympy.externalrsympy.utilities.decoratorrrerrsympy.parsing.latex.larkrrrerrorsr IGNORE_LIGNORE_RNO_LEFT BEGIN_AMS_MAT END_AMS_MAT BEGIN_ARREND_ARRritemsr(r'r&r7__doctest_requires__r8)kvs00rrUs(8"\\%   "  " XJ}o6K= R[8\IRz-9{mH:UW;XXJ}o6K= R[8\IRz-9{mH:UW;XXJ}o6K= R[8\IRz-9{mH:UW;X$&7$&7$&7XJyk2y )4TIRz)57)H:R7PXJyk2y )4TIRz)57)H:R7PXJyk2y )4TIRz)57)H:R7P "'4&9&9&;<&;daQT&;< z-9;Sy8*]O<>Pz-9;Sy8*]O<>Pz-9;Sy8*]O<>P');');');z)57ay8*YK8:^z)57ay8*YK8:^z)57ay8*YK8:^$"]8*I68O!]8*B/1A!]8*I68O!]8*B/1A!]8*I68O!]8*B/1A#%5#%5#%5Yxj 24JYxj+_Yxj 24JYxj+_Yxj 24JYxj+_$D)L)8V*<=./7@07@c=s(G