MATLAB POLYSPACE RELEASE NOTES Manual do Utilizador descarregar pdf (Página 30)

2 Matrices and Arra ys

regarded as one long column vector formed from the columns of the original

matrix. So,forourmagicsquare,

A(8) is another way of referring to the

value

15 stored in A(4,2).

If you try to use the value of an element outside of the matrix, it is an error:

t = A(4,5)

Index exceeds matrix dimensions.

On the other hand, if you store a value in an element outside of the matrix,

the size increases to accommodate the newcomer:

X=A;

X(4,5) = 17

1632130

51011 8 0

967120

41514 117

The Colon Operator

The colon, :, is one of the most important MATLAB operators. It occurs in

several different forms. The expression

1:10

is a row vector containing the integers from 1 to 10:

12345678910

To obtain nonunit spacing, specify an increment. For example,

100:-7:50

10093867972655851

and

0:pi/4:pi

2-8

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 239 240

Sem comentários

MATLAB POLYSPACE RELEASE NOTES Manual do Utilizador Página 30