Understanding Boolean Functions with Karnaugh Maps

[kukumaluboy]

Homework Statement

Homework Equations

The Attempt at a Solution

The answer is not given.

What i did was i drew the kmap and used minterms 0,2,8,11 and dontcares 3 and 10.
So is the complement of it 1, 4, 5, 6, 7, 9, 12 13, 14, 15 ?
So issit non of the above?

 

[jedishrfu]

Have you looked at it using DeMorgans rules?

Can you provide more context? like where did the problem come from?

What is the meaning m(..) and d(...) and M(...) functions?

 

[kukumaluboy]

Wait is it correct to do this.

1) Draw Kmap with don't cares
2) Obtain SOP
3) Negate SOP

Method 2
1)Change all the 1s to zeroes and zeroes to 1s. Keep the Dont cares the same
2)Draw Kmap
3)Obtain SOP

Are these 2 methods the same?

 

[jedishrfu]

I haven't studied them in a long time and will defer to another mentor.

I did find this article on K-maps on wikipedia that may provide some guidance for now.

http://en.wikipedia.org/wiki/Karnaugh_map

Its got some cool pics with a K-map on a torus like "Have a donut while you're thinking like Spock".