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can anybody explain me these two statements? Any reference to read? Thanks

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Super Contributor
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can anybody explain me these two statements? Any reference to read? Thanks

a=-w**2;

 

a=x`[1,2];


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‎05-24-2016 03:00 PM
SAS Super FREQ
Posts: 3,416

Re: can anybody explain me these two statements? Any reference to read? Thanks

The first statement is equivalent to 

a = -w*w;

which is matrix multiplication.

 

The second statement is equivalent to 

a = x[2,1];

because transpose means flip the matrix across the main diagonal.

 

It sounds like you have some very basic questions about the SAS/IML language. You might want to look at these resources to help you get started with the language: "Ten tips for learning the SAS/IML language."

 

 

 

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Grand Advisor
Posts: 17,428

Re: can anybody explain me these two statements? Any reference to read? Thanks

Solution
‎05-24-2016 03:00 PM
SAS Super FREQ
Posts: 3,416

Re: can anybody explain me these two statements? Any reference to read? Thanks

The first statement is equivalent to 

a = -w*w;

which is matrix multiplication.

 

The second statement is equivalent to 

a = x[2,1];

because transpose means flip the matrix across the main diagonal.

 

It sounds like you have some very basic questions about the SAS/IML language. You might want to look at these resources to help you get started with the language: "Ten tips for learning the SAS/IML language."

 

 

 

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