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29 Jan 2012 10:03:50 IST

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what is the of direction ratios

Mathematics

what is the of direction ratios

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Vikram Saxena

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Joined: 1 Apr 2007

Posts: 3737

31 Mar 2012 01:11:00 IST

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Direction ratios provide a convenient way of specifying the direction of a line in three dimensional

space.

For any vector r = ai + bj, its direction ratio is a : b

Given a vector r = ai + bj + ck its direction ratios are a : b : c. This means that to move in

the direction of the vector we must must move a units in the x direction and b units in the y

direction for every c units in the z direction.

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