Python exp Beispiele

Beispiel #1

Datei: numbers.py Projekt: certik/sympy-oldcore

 def exp(self): return Real(decimal_math.exp(self._as_decimal()))
 def log(self): return Real(decimal_math.log(self._as_decimal()))

Beispiel #2

Datei: calc.py Projekt: ktt3ja/plymexp

    t.lexer.skip(1)
    
# Build the lexer
lex.lex()

# Parsing rules

precedence = (
    ('left','PLUS','MINUS'),
    ('left','TIMES','DIVIDE'),
    ('right','UMINUS'),
    ('right','RAISE_TO'),
    )


names = {'e': exp(Decimal(1)), 'pi': pi(), '_last': Decimal(0)}
reserved_names = ['e','pi','_last']
def p_statement_assign(t):
    'statement : NAME EQUALS expression'
    if t[1] in reserved_names:
        print "Name %s reserved" % t[1]
    else: 
        names[t[1]] = t[3]

def p_set_last_to(t):
    'statement : SET_TO NAME'
    if t[2] in reserved_names:
        print "Name %s reserved" % t[2]
    else:
        names[t[2]] = names['_last'] 

Beispiel #3

Datei: calc.py Projekt: pombreda/plymexp

    t.lexer.skip(1)


# Build the lexer
lex.lex()

# Parsing rules

precedence = (
    ('left', 'PLUS', 'MINUS'),
    ('left', 'TIMES', 'DIVIDE'),
    ('right', 'UMINUS'),
    ('right', 'RAISE_TO'),
)

names = {'e': exp(Decimal(1)), 'pi': pi(), '_last': Decimal(0)}
reserved_names = ['e', 'pi', '_last']


def p_statement_assign(t):
    'statement : NAME EQUALS expression'
    if t[1] in reserved_names:
        print "Name %s reserved" % t[1]
    else:
        names[t[1]] = t[3]


def p_set_last_to(t):
    'statement : SET_TO NAME'
    if t[2] in reserved_names:
        print "Name %s reserved" % t[2]