Polynomial Evaluation
Polynomial Calculation.
Description
Block Polynomial Evaluation applies a polynomial function to the input signal on the In port. The polynomial is defined as a vector of real coefficients in descending order of degree.
When the Use constant coefficients checkbox is selected, the polynomial expression is specified in the Constant coefficients parameters. When the Use constant coefficients checkbox is unchecked, the variable polynomial expression is specified by input to the Coeffs port. In both cases, the polynomial is specified as a vector of real or complex coefficients in descending order of exponent.
The table below shows examples of block operation for different vectors of coefficients.
| Coefficient vector | Equivalent polynomial |
|---|---|
[1 2 3 4 5] |
|
[1 0 3 0 5] |
|
[1 2+i 3 4 4-3i 5i]. |
|
Each element of a vector or matrix arriving at the input of port In is processed independently, and the output size is equal to the input size.
Ports
Input
In - input signal
Input signal.
Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64
Coeff - coefficients of the polynomial
vector
Coefficients of the polynomial.
Dependencies
To use this port, uncheck Use constant coefficients.
Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64