the difference between a value and a set of values

a=(  2743.727  2743.727  2743.727  2743.727 )
b=(  2304.763  2304.763  2402.288  2304.764  2304.764 )

How can I calculate the matrix

c=  
  11-11  21-11  31-11  41-11 
 
  11-21  21-21  31-21  41-12 
 
  11-31  21-31  31-31  41-13 
 
  11-41  21-41  31-41  41-14 
 
  11-51  21-51  31-51  41-15 

[Star Strider]

What does ‘c’ have to do with ‘a’ and ‘b’?

[majed zammam]

A=( 100 60 70 80 )

B=( 90 50 60 80 100 )

C= 100-90=10 60-90=-30 70-90=-20 80-90=-10

100-50=50 60-50=10 70-50=-20 80-50=-30

100-60=40 60-60=0 ------- ----------

100-80=20 60-80=-20 ------- -------

100-100=0 -------- ------ -------

Answer 1

[Walter Roberson]

a = [2743.727 2743.727 2743.727 2743.727];
b = [2304.763 2304.763 2402.288 2304.764 2304.764];
c = a - b.'

c = 5×4

438.9640 438.9640 438.9640 438.9640 438.9640 438.9640 438.9640 438.9640 341.4390 341.4390 341.4390 341.4390 438.9630 438.9630 438.9630 438.9630 438.9630 438.9630 438.9630 438.9630

[majed zammam]

IF WE HAVE

A=

2743.727 2743.727 2743.727 2743.727

2714.443 2714.442 2714.441 2714.441

2704.226 2704.226 2704.227 2704.228

2699.598 2699.598 2699.597 2699.596

2696.508 2696.508 2696.506 2696.506

2694.07 2694.07 2694.069 2694.069

2692.179 2692.178 2692.174 2692.175

2690.622 2690.622 2690.622 2690.622

2689.384 2689.384 2689.383 2689.382

2688.354 2688.354 2688.349 2688.349 ]

AND

B=

2304.763 2304.763 2402.288 2304.764 2304.764

2305.205 2305.205 2402.773 2305.205 2305.205

2305.634 2305.636 2403.23 2305.636 2305.638

2306.094 2306.093 2403.719 2306.093 2306.091

2306.572 2306.571 2404.227 2306.571 2306.569

2307.055 2307.054 2404.746 2307.054 2307.053

2307.551 2307.545 2405.275 2307.545 2307.542

2308.03 2308.03 2405.789 2308.03 2308.03

2308.529 2308.527 2406.322 2308.527 2308.526

2309.031 2309.025 2406.857 2309.025 2309.021 }

[majed zammam]

HOW CAN CALCULATE C=A-B'

[majed zammam]

A MATRICS (ROW=3,COL=4),B (ROW=3,COL=5)

HOW CAN CALCULATE C=A-B'?

[Walter Roberson]

What size of result do you need? 3 x 4 x 5?

[majed zammam]

yes

[majed zammam]

3*5*4

[majed zammam]

example:

a =

10 -30 -20 -10

50 10 20 30

>> b

b =

90 50 60 80 100

40 50 60 100 20

i want

c =

-80 -120 -110 -100

-40 -80 -70 -60

-50 -90 -80 -70

-70 -110 -100 -90

-90 -130 -120 -110

c =

10 -30 -20 -10

0 -40 -30 -20

-10 -50 -40 -30

-50 -90 -80 -70

30 -10 0 10

if a(n*m) and b(n*k)???? c=n*(m*k)

[Walter Roberson]

a = [
    10   -30   -20   -10
    50    10    20    30]

a = 2×4

10 -30 -20 -10 50 10 20 30

b = [
    90    50    60    80   100
    40    50    60   100    20]

b = 2×5

90 50 60 80 100 40 50 60 100 20

c = a - permute(b, [1 3 2])

c = 
c(:,:,1) =

   -80  -120  -110  -100
    10   -30   -20   -10


c(:,:,2) =

   -40   -80   -70   -60
     0   -40   -30   -20


c(:,:,3) =

   -50   -90   -80   -70
   -10   -50   -40   -30


c(:,:,4) =

   -70  -110  -100   -90
   -50   -90   -80   -70


c(:,:,5) =

   -90  -130  -120  -110
    30   -10     0    10

[majed zammam]

thank you very mach,but can you please ,get out as:(5*4*2)

i want

c =

-80 -120 -110 -100

-40 -80 -70 -60

-50 -90 -80 -70

-70 -110 -100 -90

-90 -130 -120 -110

c =

10 -30 -20 -10

0 -40 -30 -20

-10 -50 -40 -30

-50 -90 -80 -70

30 -10 0 10