Package pygeodesy :: Module fmath :: Class Fhorner

Class Fhorner

  object --+        
           |        
named._Named --+    
               |    
      fsums.Fsum --+
                   |
                  Fhorner

Precision polynomial evaluation using the Horner form.

Instance Methods

__init__(self, x, *cs, **name_RESIDUAL)
New Fhorner evaluation of polynomial sum(cs[i] * x**i for i=0..len(cs)-1).

Inherited from fsums.Fsum: Fsum2Tuple_, Fsum_, Fsumf_, RESIDUAL, __abs__, __add__, __bool__, __ceil__, __cmp__, __div__, __divmod__, __eq__, __float__, __floor__, __floordiv__, __format__, __ge__, __gt__, __hash__, __iadd__, __idiv__, __ifloordiv__, __imatmul__, __imod__, __imul__, __int__, __invert__, __ipow__, __isub__, __iter__, __itruediv__, __le__, __len__, __long__, __lt__, __matmul__, __mod__, __mul__, __ne__, __neg__, __nonzero__, __pos__, __pow__, __radd__, __rdiv__, __rdivmod__, __rfloordiv__, __rmatmul__, __rmod__, __rmul__, __round__, __rpow__, __rsub__, __rtruediv__, __str__, __sub__, __truediv__, __trunc__, as_integer_ratio, cmp, copy, divmod, fadd, fadd_, fcopy, fdiv, fdivmod, fint, fint2, fmul, fover, fpow, fset_, fsub, fsub_, fsum, fsum2, fsum2_, fsum2f_, fsum_, fsumf_, int_float, is_exact, is_integer, is_math_fsum, is_scalar, pow, root, signOf, toRepr, toStr

Inherited from named._Named: __repr__, attrs, classof, dup, methodname, rename, toStr2

Inherited from object: __delattr__, __getattribute__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __subclasshook__

Properties

Inherited from fsums.Fsum: as_iscalar, ceil, float_int, floor, imag, partials, real, residual

Inherited from named._Named: classname, classnaming, iteration, name, named, named2, named3, named4, sizeof

Inherited from object: __class__

Method Details

init (self, x, *cs, **name_RESIDUAL)
(Constructor)

New Fhorner evaluation of polynomial sum(cs[i] * x**i for i=0..len(cs)-1).

Arguments:

x - Polynomial argument (scalar or Fsum instance).
cs - Polynomial coeffients (scalar or Fsum instances), all positional.
name_RESIDUAL - Optional name=NN and RESIDUAL=None, see Fsum.

Raises:

OverflowError - Partial 2sum overflow.
TypeError - Non-scalar x.
ValueError - Non-finite x.

Overrides: object.__init__

See Also: Function fhorner and methods Fsum.fadd and Fsum.fmul.

Class Fhorner

__init__ (self, x, *cs, **name_RESIDUAL) (Constructor)

init (self, x, *cs, **name_RESIDUAL)
(Constructor)