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J. M.'s missing motivation ♦
J. M.'s missing motivation ♦
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Tweeted twitter.com/StackMma/status/918534357459103744
I felt that the answers went beyond a simple solution, and that offer quite interesting perfomance tuning. However, this is just a personal oppinion and may be discarde....
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edit approved Oct 11, 2017 at 21:12
ercegovac
edit approved Oct 11, 2017 at 21:12
ercegovac
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added 8 characters in body; edited title
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David G. Stork
David G. Stork
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Picking first row of a matrix with a positive first elemetelement

I have a table of order 30 X 3$30 \times 3$. I want to pick a row from this table which is first to have its first element to be positive, irrespective of the values of the rest two elements.

For example, if

T = {{-2, 1, 2}, {-4, 2, 5}, {-6, 4, 3}, {-2, 2, 1}, {2, 4, 4}, {1, 5, 3}}

howHow can I tell MthematicaMathematica to pick the row {2, 4, 4} from the T.

Picking first row of a matrix with a positive first elemet

I have a table of order 30 X 3. I want to pick a row from this table which is first to have its first element to be positive, irrespective of the values of the rest two elements.

For example, if

T = {{-2, 1, 2}, {-4, 2, 5}, {-6, 4, 3}, {-2, 2, 1}, {2, 4, 4}, {1, 5, 3}}

how can I tell Mthematica to pick the row {2, 4, 4} from the T.

Picking first row of a matrix with a positive first element

I have a table of order $30 \times 3$. I want to pick a row from this table which is first to have its first element to be positive, irrespective of the values of the rest two elements.

For example, if

T = {{-2, 1, 2}, {-4, 2, 5}, {-6, 4, 3}, {-2, 2, 1}, {2, 4, 4}, {1, 5, 3}}

How can I tell Mathematica to pick the row {2, 4, 4} from the T.

Routine clean-up
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m_goldberg
m_goldberg
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user49535
user49535
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