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    How do I describe the geometric meaning of the 2x2 matrix
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    (Original post by Balkaran)
    How do I describe the geometric meaning of the 2x2 matrix
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    What does it do to the (standard) basis vectors of R^2? That might help you see what transformation it represents.
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    (Original post by Zacken)
    What does it do to the (standard) basis vectors of R^2? That might help you see what transformation it represents.
    I'm confused with what you mean.
    what is the standard basis vectors is it the identity matrix?
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    You should be able to identify that it's of a standard form of a type of transformation matrix.
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    (Original post by Balkaran)
    I'm confused with what you mean.
    what is the standard basis vectors is it the identity matrix?
    e_1 = (1 0) and e_2 = (0 1)
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    (Original post by Balkaran)
    How do I describe the geometric meaning of the 2x2 matrix
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    I would use the base vectors which are
    1
    0

    and

    0
    1

    Multiply the matrix by each of those to see what happens to a unit square..
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    (Original post by B_9710)
    You should be able to identify that it's of a standard form of a type of transformation matrix.
    what's a standard form of a matrix
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    (Original post by Balkaran)
    what's a standard form of a matrix
    Never mind what I said I didn't even read the matrix correctly
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    (Original post by Muttley79)
    I would use the base vectors which are
    1
    0

    and

    0
    1

    Multiply the matrix by each of those to see what happens to a unit square..
    yeah I did that the image I got
    0 1 0 -1
    0 1 2 1
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    (Original post by Zacken)
    e_1 = (1 0) and e_2 = (0 1)
    wait is it a rotation then enlargement because it enlarges by root(2) cause the det is 2 and looks like it rotates by 45 degrees

    I'm not sure
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    (Original post by Balkaran)
    wait is it a rotation then enlargement because it enlarges by root(2) cause the det is 2 and looks like it rotates by 45 degrees

    I'm not sure
    yep
 
 
 
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