User RobPratt - Mathematics Stack Exchange

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Linearized formulas and constraints

answered Jul 12 at 0:33

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We roll a fair die until $3$ number 4s are thrown. Determine the expected value of the total number of 2s and 3s obtained along the way.

answered Jun 15 at 23:27

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Trying to prove equivalence of combinatorial formula and nested summations

answered Jun 14 at 18:34

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How to make this conversion from a binary integer linear program to a quadratic program?

answered Jun 15 at 19:03

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A min-max optimization problem for a given probability density function?

answered Jun 8 at 19:36

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Identify optimal product size configuration based on historical data and some constraints

answered Apr 10 at 1:12

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Maximize happiness in seating plan with cliques

answered Apr 21 at 4:18

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Integer partition weighted minimum of maximum

answered Apr 17, 2022 at 3:19

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Why are they conjugates?

answered Mar 15, 2022 at 1:08

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Forbid Flow to Split in Flow Network

answered May 5, 2023 at 20:36

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Model the constraint ‘Only if decision 1 is yes and decision 2 is no, then decision 3 is allowed to be yes’

answered Nov 27, 2020 at 16:42

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Combinations' Problem

answered Mar 12, 2021 at 23:25

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Why does the variance of 𝑋=2Θ+3𝑊 , where Θ and 𝑊 are standard normal random variables, is equal to 9?

answered Mar 22, 2020 at 16:00

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Pigeonhole Principle - Pairs of Sets with distinct sums

answered Jul 16, 2019 at 3:39

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Find $x$ that minimizes $\max_{1 \leq i \leq 3} f_i(x)$

answered Oct 18, 2019 at 16:59

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Maximum clique in intersection graph of $3$-element subsets of a $9$-element set?

answered Jan 20, 2020 at 4:03

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How to integrate $\int\frac{x(1-x)}{(1+x)}dx$

answered Jun 9 at 18:42

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What is the probability of a poker hand (5 cards) containing at least one club?

answered Apr 5, 2020 at 1:34

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1,968 Answers

Linearized formulas and constraints

We roll a fair die until $3$ number 4s are thrown. Determine the expected value of the total number of 2s and 3s obtained along the way.

Trying to prove equivalence of combinatorial formula and nested summations

How to make this conversion from a binary integer linear program to a quadratic program?

A min-max optimization problem for a given probability density function?

Identify optimal product size configuration based on historical data and some constraints

Maximize happiness in seating plan with cliques

Integer partition weighted minimum of maximum

Why are they conjugates?

Forbid Flow to Split in Flow Network

Model the constraint ‘Only if decision 1 is yes and decision 2 is no, then decision 3 is allowed to be yes’

Combinations' Problem

Why does the variance of 𝑋=2Θ+3𝑊 , where Θ and 𝑊 are standard normal random variables, is equal to 9?

Pigeonhole Principle - Pairs of Sets with distinct sums

Find $x$ that minimizes $\max_{1 \leq i \leq 3} f_i(x)$

Maximum clique in intersection graph of $3$-element subsets of a $9$-element set?

How to integrate $\int\frac{x(1-x)}{(1+x)}dx$

What is the probability of a poker hand (5 cards) containing at least one club?