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159 lines
3.7 KiB
159 lines
3.7 KiB
from __future__ import unicode_literals
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from ..conversions import *
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from ..func_utils import *
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import math
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import random
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CONSTANTS = {
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'E': 2.7182818284590452354,
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'LN10': 2.302585092994046,
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'LN2': 0.6931471805599453,
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'LOG2E': 1.4426950408889634,
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'LOG10E': 0.4342944819032518,
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'PI': 3.1415926535897932,
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'SQRT1_2': 0.7071067811865476,
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'SQRT2': 1.4142135623730951
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}
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def is_infinity(x):
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return x - 1e10 == x
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class MathFunctions:
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def abs(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if a != a: # it must be a nan
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return NaN
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return abs(a)
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def acos(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if a != a: # it must be a nan
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return NaN
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try:
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return math.acos(a)
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except:
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return NaN
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def asin(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if a != a: # it must be a nan
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return NaN
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try:
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return math.asin(a)
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except:
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return NaN
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def atan(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if a != a: # it must be a nan
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return NaN
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return math.atan(a)
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def atan2(this, args):
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x = get_arg(args, 0)
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y = get_arg(args, 1)
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a = to_number(x)
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b = to_number(y)
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if a != a or b != b: # it must be a nan
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return NaN
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return math.atan2(a, b)
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def ceil(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if not is_finite(x):
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return x
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return float(math.ceil(a))
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def floor(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if not is_finite(x):
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return x
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return float(math.floor(a))
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def round(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if not is_finite(x):
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return x
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return float(round(a))
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def sin(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if not is_finite(a): # it must be a nan
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return NaN
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return math.sin(a)
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def cos(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if not is_finite(a): # it must be a nan
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return NaN
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return math.cos(a)
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def tan(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if not is_finite(a): # it must be a nan
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return NaN
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return math.tan(a)
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def log(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if a != a: # it must be a nan
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return NaN
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try:
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return math.log(a)
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except:
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return NaN
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def exp(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if a != a: # it must be a nan
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return NaN
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return math.exp(a)
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def pow(this, args):
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x = get_arg(args, 0)
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y = get_arg(args, 1)
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a = to_number(x)
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b = to_number(y)
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if a != a or b != b: # it must be a nan
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return NaN
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try:
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return a**b
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except:
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return NaN
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def sqrt(this, args):
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x = get_arg(args, 0)
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a = to_number(x)
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if a != a: # it must be a nan
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return NaN
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try:
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return a**0.5
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except:
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return NaN
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def min(this, args):
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if len(args) == 0:
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return Infinity
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return min(map(to_number, tuple(args)))
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def max(this, args):
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if len(args) == 0:
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return -Infinity
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return max(map(to_number, tuple(args)))
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def random(this, args):
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return random.random()
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