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Trinity College Dublin

TCD Mathematics

School of Mathematics

MA1S12: Mathematics for Scientists
(discrete mathematics portion)


You should each be scheduled for on A tutorial group (and one B group - but that is for Calculus).

A1
Monday at 14:00 in 20 Westland Row Seninar Room (David Whyte)
A3
Monday at 14:00 in M21 (Eric Mehes)
A5
Wednesday at 13:00 in Salmon (Roisin Braddell)
A2
Thursday at 16:00 in Salmon (Eric Mehes)
A4
Thursday at 16:00 in Synge (Roisin Braddell)
A6
Friday at 13:00 in Synge (Robert Murtagh)
A7
Friday at 13:00 in EELT2 (David Whyte)

Solutions to tutorial sheets

Tutorial Sheet 1 [January 20 - 24]
Calculating determinants by cofactor expansion along the first row and using Gaussian elimination.
Tutorial Sheet 2 [January 28 - 31]
3 by 3 determinants as scalar triple products and (signed) volumes. Cofactor expansion along rows other than the first.
Tutorial Sheet 3 [February 3 - 7]
Adjugate matrix, Cramers rule, use of determinant to find equations.
Tutorial sheet 4 [February 10 - 14]
Orthogonal matrices, matrices for rotations (using change of basis matrix $P$ to another orthonormal frame). version A, version B, version C.
Tutorial sheet 5 [February 17 - 21]
More on rotation matrices, Gram-Schmidt. version A, version B, version C.
Tutorial sheet 6 [March 3 - 7]
Eigenvalues, eigenvectors ard orthogonal diagonalaistion of symmetric matrices. version A, version B, version C.
Tutorial sheet 7 [March 10 - 14]
Eigenvalues, eigenvectors ard diagonalaistion of matrices. Matrix exponentials. version A, version B, version C.
Tutorial sheet 8 [March 19 - 24]
Least squares fit. Linear ODEs of second order (homogeneous) and systems of first order linear (contant coefficient) ODEs. version A, version B.
Tutorial sheet 9 [March 26 - 31]
Probabilities. Theoretical measn and standard deviation of a random variable. Binomial distribution. version A, version B, version C.
Tutorial/exercise sheet 10 [March 31]
Poisson and normal distributions. Student's $t$-test. (Solutions.)