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Matrix multiplication using W|A ?

Posted 1 month ago
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I try to compute matrix multiplication for matrix with entries likes 1/sqrt(2) But any my tries finished with error (wolfram can not understand me....) I tried in W|A:

{{1/Sqrt[2]}, {1/Sqrt[2]}}.{{1/Sqrt[2], 1/Sqrt[2],0}}

I need matrix 1x3 but 3x1 is correct {{1/Sqrt[2], 1, 2}}

Please give me some idea about it

4 Replies

What exactly is your problem? Your post is not understandable!

Posted 1 month ago

Ok I want to compute

{{1/Sqrt[2]}, {1/Sqrt[2]}}.{{1/Sqrt[2], 1/Sqrt[2],0}}

but Wolfram says me wrong dimensions I want to compute 21 . 13 matrices

Ok I want to compute

{{1/Sqrt[2]}, {1/Sqrt[2]}}.{{1/Sqrt[2], 1/Sqrt[2],0}}

but Wolfram says me wrong dimensions I want to compute 2*1 \cdot 1*3 matrices


Woiks for me.

In[3]:= {{1/Sqrt[2]}, {1/Sqrt[2]}}.{{1/Sqrt[2], 1/Sqrt[2], 0}}

Out[3]= {{1/2, 1/2, 0}, {1/2, 1/2, 0}}
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