## 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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Solution
‎05-24-2016 03:00 PM
SAS Super FREQ
Posts: 4,165

## 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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Super User
Posts: 23,224

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

Solution
‎05-24-2016 03:00 PM
SAS Super FREQ
Posts: 4,165

## 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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