rgb2xyz converter martrix different from other references

Hello, I have a question about the color space transform function.

I found that images.color.linearRGBToXYZConverter martrix has some difference with the martrix I can find on website, as below

martrix in matlab - Parameter Value

 0.41246 0.21267 0.019334 
 0.35758 0.71515 0.11919 
 0.18044 0.072175 0.9503

martrix in other -

 [0.412453    0.357580    0.180423]
 [0.212671    0.715160    0.072169]  
 [0.019334    0.119193    0.950227]

I wonder why there are differences? Thanks.

[Walter Roberson]

Give the command

format long g

and then look again. The transpose of the matrix is

0.412456439089692 0.357576077643909 0.180437483266399
0.212672851405623 0.715152155287818 0.0721749933065596
0.0193338955823293 0.119192025881303 0.950304078536368

This is not exactly the same as the other to within round off, but some of the differences are accounted for.

[Xuechu Xu]

Thank you, by the way how can I call this martrix in matlab? I found it in color converter document previously, but unable to make further process on it (like using a "format long g" command).

[Walter Roberson]

s = images.color.linearRGBToXYZConverter;
s.ConversionParameters.M