See the refine function in sympy.assumptions replace ( query, value, map = False, simultaneous = True, exact = None ) # rcall ( z ) x + 2*z refine ( assumption = True ) # > from sympy import Lambda > from sympy.abc import x, y, z > ( x + Lambda ( y, 2 * y )). This is a convenience function that allows one to create objects fromĪny iterable, without having to convert to a list or tuple first. classmethod fromiter ( args, ** assumptions ) # To which it will perform a derivative those areīound variables, too, so it has its own free_symbols method.Īny other method that uses bound variables should implement aįree_symbols method. Derivative keeps track of symbols with respect Which are bound variables, so Integral has a method to return all Integrals use Symbols for the dummy variables
#Xlist latex letter free
Eg: IndexedBase(‘I’).free_symbolsįor most expressions, all symbols are free symbols. Return from the atoms of self those which are free symbols. dummy_eq ( x ** 2 + y, y ) False find ( query, group = False ) #įind all subexpressions matching a query. extended_negative # extended_nonnegative # extended_positive # extended_nonpositive # extended_nonzero #Īs without the extended part, but also including infinity withĬorresponding sign, e.g., extended_positive includes oo hermitian # antihermitian # Object can have only positive (nonpositive) values. Object can have only negative (nonnegative) Object absolute value is bounded (arbitrarily large). Object value cannot be represented exactly by Rational, see.
Object is a real number that is not zero. Object is a positive integer that has at least one positiveĭivisor other than 1 or the number itself. No positive divisors other than 1 and itself. Object is a natural number greater than 1 that has
Object can have only values from the set of Please note that 0 is not considered to be an Number multiplied by the imaginary unit I. Object value is a number that can be written as a real Object commutes with any other object with Here follows a list of possible assumption names: commutative # For example, a symbol that has a propertyīeing integer, is also real, complex, etc. May or may not be positive so a value of None is returned for x.is_positive.īy default, all symbolic values are in the largest set in the given context When the property cannot be determined (or when a method is not
0 kommentar(er)
