discrete mathematics : Math Help

Obtaining positive eigenvalues of the matrix $A$?

linear-algebra matrices eigenvalues-eigenvectors computational-mathematics
Updated July 24, 2019 04:20 AM

Moving factors out of sums (Lagrange identity proof)

discrete-mathematics summation
Updated July 23, 2019 18:20 PM

Prove the following identity ${(\sum_1^na_jb_j)}^2 = {(\sum_1^na^2_j)}{(\sum_1^nb^2_j)}^2-\sum_1^n\sum_1^n{(a_kb_j-a_jb_k)}^2$

discrete-mathematics polynomials summation cauchy-schwarz-inequality
Updated July 23, 2019 18:20 PM

How can I complete this proof, a part of proof of the Tree are not clear for me in this induction.

discrete-mathematics graph-theory trees
Updated July 23, 2019 16:20 PM

Solving recurrence relations with characteristics root method

discrete-mathematics recurrence-relations
Updated July 23, 2019 12:20 PM

The closed-form solution of the family $\sum_{n=1}^{\infty} \sum_{m=1}^{\infty} \frac{1}{nm(pn+m)}$?

integration definite-integrals closed-form constants experimental-mathematics
Updated July 23, 2019 11:20 AM

Karatsuba Multiplication Rule in dividing a Number in two parts

computational-mathematics multiplicative-function
Updated July 23, 2019 09:20 AM

Question about relative component sets

discrete-mathematics elementary-set-theory
Updated July 23, 2019 04:20 AM

Survival probability of a passenger given that the passenger is a female staying in first class.

discrete-mathematics conditional-probability
Updated July 22, 2019 18:20 PM

Please let me know why 2/16 has a remainder of 2. Thanks

recreational-mathematics
Updated July 22, 2019 18:20 PM

How can I prove prime factorization theorem by induction?

discrete-mathematics induction
Updated July 22, 2019 17:20 PM

Can one prove that $f(ab) = f(a) + f(b)$ can only be a linear sum of the $4$ functions?

functions discrete-mathematics logarithms
Updated July 22, 2019 16:20 PM

Discrete math induction, divide by 4

discrete-mathematics induction
Updated July 22, 2019 14:20 PM

$A × (B-C) = (A × B)-(A × C)$. Is the statement true or false?

discrete-mathematics elementary-set-theory
Updated July 22, 2019 09:20 AM

transitive relation from discrete math

discrete-mathematics
Updated July 22, 2019 05:20 AM

Simplify non-linear system in MATLAB/Octave before solving

algebra-precalculus matlab computational-mathematics octave
Updated July 22, 2019 05:20 AM

Is every Formal system expressible as a Turing machine and vice versa?

discrete-mathematics computer-science computational-mathematics
Updated July 22, 2019 00:20 AM

A selection of objects (with replacement) using combination formula

probability combinatorics discrete-mathematics
Updated July 21, 2019 23:20 PM

Representing a sentence in first order logic

discrete-mathematics first-order-logic
Updated July 21, 2019 22:20 PM

The function $g: \Bbb{Z}_{10} → \Bbb{Z}_{10}$ is defined by $g(x) ≡ 7x + 2 \mod 10$. Find its inverse function.

abstract-algebra discrete-mathematics
Updated July 21, 2019 15:20 PM

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