© Sandeep Nagar 2017
Sandeep Nagar, Beginning Julia Programming, https://doi.org/10.1007/978-1-4842-3171-5_8
Sandeep Nagar1
(1)New York, USA
A Julia array is equivalent to a mathematical matrix
because, just like a Julia array, a matrix is an ordered collection of numbers. The simplest case for a matrix is the one storing component of a 3D vector. For example, a vector 
can also be represented as either a row matrix:![$$ \left[2\kern0.5em 3\kern0.5em -4\right] $$](/api/v2/epubs/urn:orm:book:9781484231715/files/A458482_1_En_8_Chapter_Equa.gif){kind=small}
or a column matrix:
In both cases, the numbers 2, 3, and −4 are ordered in a fashion. ...
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