tf.math.polyval

Computes the elementwise value of a polynomial.

Compat aliases for migration

See Migration guide for more details.

tf.math.polyval(
    coeffs, x, name=None
)

If x is a tensor and coeffs is a list n + 1 tensors, this function returns the value of the n-th order polynomial

p(x) = coeffs[n-1] + coeffs[n-2] * x + ... + coeffs[0] * x**(n-1)

evaluated using Horner's method, i.e.

p(x) = coeffs[n-1] + x * (coeffs[n-2] + ... + x * (coeffs[1] + x * coeffs[0]))

Args
`coeffs`	A list of `Tensor` representing the coefficients of the polynomial.
`x`	A `Tensor` representing the variable of the polynomial.
`name`	A name for the operation (optional).

Returns
A `tensor` of the shape as the expression p(x) with usual broadcasting rules for element-wise addition and multiplication applied.

Equivalent to numpy.polyval.

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Last updated 2020-10-01 UTC.

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