The following matrix is created in MATLAB C46 311 linspace79

The following matrix is created in MATLAB: C=[4:6; 3:-1:1; linspace(7,9,3)]

Which statement represents the third column of C?

C( :, 2)

C( 1:3, 3)

[1 9 6]\'

C(2, 3)

Nee the code please

Solution

the given Matrix is C=[4:6; 3:-1:1; linspace(7,9,3)]

the symbol \";\" seperates two rows in a matrix

therefore now we have three rows as ; is specified twice in above matrix

they are

4:6     = row1 [4 5 6]

3:-1:1 =row2 [3 2 1]    (-1 specifies decrement value from 3 to 1 of adjacent elements in a row)

LINSPACE Linearly spaced vector.
    LINSPACE(X1, X2) generates a row vector of 100 linearly
    equally spaced points between X1 and X2.

Note:along with X1 and X2 100 parts

    LINSPACE(X1, X2, N) generates N points between X1 and X2.
    For N < 2, LINSPACE returns X2.

    Class support for inputs X1,X2:
       float: double, single

example here third row of matrix c is linspace(7,9,3)

i.e ., X1=7 X2=9 N=3

therefore row3=[7 8 9]

finally we have

c=

          4     5     6
  C =   3     2     1
          7     8     9

therefore column 3 is [6 1 9]