`set_upkara`

, `set_uptkara`

, `set_upfft`

`set_upkara([``threshold`])`set_uptkara([``threshold`])`set_upfft([``threshold`])- :: Set thresholds in the selection of an algorithm from N^2, Karatsuba, FFT algorithms for univariate polynomial multiplication.

`return`- value currently set
`threshold`- non-negative integer

- These functions set thresholds in the selection of an algorithm from N^2, Karatsuba, FFT algorithms for univariate polynomial multiplication.
- Products of univariate polynomials are computed by N^2, Karatsuba, FFT algorithms. The algorithm selection is done according to the degrees of input polynomials and the thresholds.
- See the description of each function for details.

`References`-
section
`kmul`

,`ksquare`

,`ktmul`

, section`umul`

,`umul_ff`

,`usquare`

,`usquare_ff`

,`utmul`

,`utmul_ff`

.

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