Recent content by bracey

Just abit of fun! Find a 5 digit number that: · Has no two identical digits. · Has two digits that are perfect squares. · Has two digits that are prime. · Has one digit that is neither prime, or a perfect square. · That has the second digit six less than the fourth...

What are all the advantages of good aerodynamic design and how can these be proved mathematically? For example what is the difference between a truck with a wind deflector and the same truck without the wind deflector?

Dont know if this is the right place to post this, so let me know if it isnt! I have just started studying macaulays equation and for every question i have done i have always been given the values of E and I. I know what E is and i was just wondering what I is and how it can be calculated. Is...

thanks for the help Ambitwistor, much appreciated

brilliant cheers, you were right i typed the eigenvector in wrong so if i got this right, then the normalsised eigenvector should be 0.069 -0.346 -0.935

Hi I am a newie as well and also very confused by normalising ok, so now i understand the importance of normalising eigenvectors, but how do you actually do this operation. for example given the matrix 3 0 0 5 4 0 3 6 1 i calculate the eigenvalues to be 3, 4 and 1 using eigenvalue =...