U
    «Ì0eª  ã                   @   sL   d dl mZmZmZ d dlmZ d dlmZ d dlm	Z	 G dd„ deƒZ
dS )é    )Ú
AtomicExprÚSymbolÚS)Ú_sympify)Ú
prettyForm)Ú
PRECEDENCEc                       sr   e Zd ZdZd‡ fdd„	ZdZdZedd„ ƒZdZ	dd	„ Z
dd
d„Zddd„Zed Zedd„ ƒZdd„ Z‡  ZS )Ú
BaseScalarzb
    A coordinate symbol/base scalar.

    Ideally, users should not instantiate this class.

    Nc                    sÜ   ddl m} |d kr d |¡}nt|tƒr0|j}|d krDd |¡}nt|tƒrT|j}t|ƒ}t|ƒ}tƒ  | ||¡}t||ƒs†t	dƒ‚|t
ddƒkrœtdƒ‚||f|_|jd |j|   |_|_d	| |_||_||_|S )
Nr   )Ú
CoordSys3Dzx{}zx_{}zsystem should be a CoordSys3Dé   zInvalid index specified.Ú.Ú )Zsympy.vector.coordsysrectr	   ÚformatÚ
isinstancer   Únamer   ÚsuperÚ__new__Ú	TypeErrorÚrangeÚ
ValueErrorZ_idÚ_nameZ_variable_namesÚ_pretty_formÚ_latex_formÚ_system)ÚclsÚindexÚsystemZ
pretty_strZ	latex_strr	   Úobj©Ú	__class__© ú7/tmp/pip-unpacked-wheel-_6tpq7m6/sympy/vector/scalar.pyr      s,    




zBaseScalar.__new__Tc                 C   s   | hS ©Nr   ©Úselfr   r   r    Úfree_symbols-   s    zBaseScalar.free_symbolsc                 C   s   | |krt jS t jS r!   )r   ZOneZZero)r#   Úsr   r   r    Ú_eval_derivative3   s    zBaseScalar._eval_derivativec                 C   s   | j S r!   )r   ©r#   Úprinterr   r   r    Ú_latex8   s    zBaseScalar._latexc                 C   s
   t | jƒS r!   )r   r   r'   r   r   r    Ú_pretty;   s    zBaseScalar._prettyZAtomc                 C   s   | j S r!   )r   r"   r   r   r    r   @   s    zBaseScalar.systemc                 C   s   | j S r!   )r   r'   r   r   r    Ú	_sympystrD   s    zBaseScalar._sympystr)NN)N)N)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r   Zis_commutativeZ	is_symbolÚpropertyr$   Z	_diff_wrtr&   r)   r*   r   Ú
precedencer   r+   Ú__classcell__r   r   r   r    r      s   



r   N)Z
sympy.corer   r   r   Zsympy.core.sympifyr   Z sympy.printing.pretty.stringpictr   Zsympy.printing.precedencer   r   r   r   r   r    Ú<module>   s   