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Theory and Modern Applications

Table 4 Results of comparison for the dimension \(\pmb{m\times n=410\times 400}\) in terms of the elapsed time

From: Several numerical methods for computing unitary polar factor of a matrix

Matrix No.

NM

ANM

KHM

PM1

PM2

PM3

1

1.131065

1.151066

0.581033

0.619035

0.542031

0.607035

2

1.144065

1.150066

0.587034

0.597034

0.522030

0.610035

3

1.190068

1.144065

0.578033

0.587034

0.532030

0.632036

4

1.153066

1.144065

0.589034

0.591034

0.524030

0.598034

5

1.135065

1.147066

0.581033

0.586033

0.538031

0.607035

6

1.145066

1.148066

0.588034

0.599034

0.527030

0.602034

7

1.134065

1.152066

0.587034

0.593034

0.532030

0.599034

8

1.123064

1.157066

0.577033

0.594034

0.518030

0.617035

9

1.137065

1.149066

0.589034

0.593034

0.520030

0.604035

10

1.127064

1.140065

0.503029

0.593034

0.521030

0.614035

11

1.129065

1.144065

0.577033

0.591034

0.524030

0.596034

12

1.119064

1.147066

0.593034

0.592034

0.522030

0.600034

13

1.139065

1.152066

0.591034

0.590034

0.527030

0.600034

14

1.124064

1.142065

0.587033

0.593034

0.522030

0.595034

15

1.126064

1.155066

0.597034

0.605035

0.522030

0.619035