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helpers

bic_vals

p0 staticmethod 

p0(b: float, c: float) -> float
Source code 
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@staticmethod
def p0(b: float, c: float) -> float:
    return (6.0 - 2.0 * b) / 6.0

p2 staticmethod 

p2(b: float, c: float) -> float
Source code 
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@staticmethod
def p2(b: float, c: float) -> float:
    return (-18.0 + 12.0 * b + 6.0 * c) / 6.0

p3 staticmethod 

p3(b: float, c: float) -> float
Source code 
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@staticmethod
def p3(b: float, c: float) -> float:
    return (12.0 - 9.0 * b - 6.0 * c) / 6.0

q0 staticmethod 

q0(b: float, c: float) -> float
Source code 
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@staticmethod
def q0(b: float, c: float) -> float:
    return (8.0 * b + 24.0 * c) / 6.0

q1 staticmethod 

q1(b: float, c: float) -> float
Source code 
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@staticmethod
def q1(b: float, c: float) -> float:
    return (-12.0 * b - 48.0 * c) / 6.0

q2 staticmethod 

q2(b: float, c: float) -> float
Source code 
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@staticmethod
def q2(b: float, c: float) -> float:
    return (6.0 * b + 30.0 * c) / 6.0

q3 staticmethod 

q3(b: float, c: float) -> float
Source code 
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@staticmethod
def q3(b: float, c: float) -> float:
    return (-b - 6.0 * c) / 6.0

poly3 

poly3(x: float, c0: float, c1: float, c2: float, c3: float) -> float
Source code 
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def poly3(x: float, c0: float, c1: float, c2: float, c3: float) -> float:
    return c0 + x * (c1 + x * (c2 + x * c3))

round_halfup 

round_halfup(x: float) -> float
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def round_halfup(x: float) -> float:
    return floor(x + 0.5) if x < 0 else floor(x + 0.49999999999999994)

sinc 

sinc(x: float) -> float
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def sinc(x: float) -> float:
    return 1.0 if x == 0.0 else sin(x * pi) / (x * pi)