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bazarr/libs/js2py/internals/constructors/jsmath.py

158 lines
3.6 KiB

from __future__ import unicode_literals
from ..conversions import *
from ..func_utils import *
import math
import random
CONSTANTS = {
'E': 2.7182818284590452354,
'LN10': 2.302585092994046,
'LN2': 0.6931471805599453,
'LOG2E': 1.4426950408889634,
'LOG10E': 0.4342944819032518,
'PI': 3.1415926535897932,
'SQRT1_2': 0.7071067811865476,
'SQRT2': 1.4142135623730951
}
class MathFunctions:
def abs(this, args):
x = get_arg(args, 0)
a = to_number(x)
if a != a: # it must be a nan
return NaN
return abs(a)
def acos(this, args):
x = get_arg(args, 0)
a = to_number(x)
if a != a: # it must be a nan
return NaN
try:
return math.acos(a)
except:
return NaN
def asin(this, args):
x = get_arg(args, 0)
a = to_number(x)
if a != a: # it must be a nan
return NaN
try:
return math.asin(a)
except:
return NaN
def atan(this, args):
x = get_arg(args, 0)
a = to_number(x)
if a != a: # it must be a nan
return NaN
return math.atan(a)
def atan2(this, args):
x = get_arg(args, 0)
y = get_arg(args, 1)
a = to_number(x)
b = to_number(y)
if a != a or b != b: # it must be a nan
return NaN
return math.atan2(a, b)
def ceil(this, args):
x = get_arg(args, 0)
a = to_number(x)
if a != a: # it must be a nan
return NaN
return float(math.ceil(a))
def floor(this, args):
x = get_arg(args, 0)
a = to_number(x)
if a != a: # it must be a nan
return NaN
return float(math.floor(a))
def round(this, args):
x = get_arg(args, 0)
a = to_number(x)
if a != a: # it must be a nan
return NaN
return float(round(a))
def sin(this, args):
x = get_arg(args, 0)
a = to_number(x)
if not is_finite(a): # it must be a nan
return NaN
return math.sin(a)
def cos(this, args):
x = get_arg(args, 0)
a = to_number(x)
if not is_finite(a): # it must be a nan
return NaN
return math.cos(a)
def tan(this, args):
x = get_arg(args, 0)
a = to_number(x)
if not is_finite(a): # it must be a nan
return NaN
return math.tan(a)
def log(this, args):
x = get_arg(args, 0)
a = to_number(x)
if a != a: # it must be a nan
return NaN
try:
return math.log(a)
except:
return NaN
def exp(this, args):
x = get_arg(args, 0)
a = to_number(x)
if a != a: # it must be a nan
return NaN
return math.exp(a)
def pow(this, args):
x = get_arg(args, 0)
y = get_arg(args, 1)
a = to_number(x)
b = to_number(y)
if a != a or b != b: # it must be a nan
return NaN
try:
return a**b
except:
return NaN
def sqrt(this, args):
x = get_arg(args, 0)
a = to_number(x)
if a != a: # it must be a nan
return NaN
try:
return a**0.5
except:
return NaN
def min(this, args):
if len(args) == 0:
return Infinity
return min(map(to_number, tuple(args)))
def max(this, args):
if len(args) == 0:
return -Infinity
return max(map(to_number, tuple(args)))
def random(this, args):
return random.random()