Recent content by geegee124

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    High School Average Percentages over 3 years

    Hi, (1+x)^2=1,8 x=1,8^(0,5)-1=0,3416 34,16% of average augmentation each years
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    High School How to calculate percentage of exam mark?

    Hi, And the rest of the 30% what is the mark ? if it is x the global mark is : 0,4*0,7+x*0,3=0,28 +0,3x
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    Graduate What is the difference between whitening and PCA?

    Hi, Matrix (M,N)*(M,1)=(M,M) = whitening is the passage (M,N)-> (M,M) The whitening transformation is a decorrelation method which transforms a set of random variables having the covariance matrix Σ into a set of new random variables whose covariance is aI, where a is a constant and I...