
Mathematical Explanation of the Difference between SQL Joins: Inner ...
May 5, 2020 · Question What is a mathematically sound & intuitive explanation of all the inner and outer SQL joins that clearly shows the differences between them? Inner Join Left Join Right Join Full …
geometry - Writing SQL code to recognize when three input lengths …
May 29, 2018 · Writing SQL code to recognize when three input lengths form a triangle Ask Question Asked 7 years, 6 months ago Modified 4 years, 7 months ago
Is Cartesian Product same as SQL Full Outer Join?
Feb 8, 2014 · Is Cartesian Product same as Full Outer Join found in Relational Database SQL? I ask because I am taking a Discrete Mathematics course and I just want a better understanding of how …
How can I find a mod with negative number? [duplicate]
I know how to solve mod using division i.e. $$11 \\mod 7 = 4$$ For this I did a simple division and took its remainder: i.e. $$11 = 7 \\cdot 1 + 4$$ Where $11$ was dividend, $7$ divisor, $1$ quotient...
Difference between PEMDAS and BODMAS. - Mathematics Stack …
Dec 21, 2022 · Division is the inverse operation of multiplication, and subtraction is the inverse of addition. Because of that, multiplication and division are actually one step done together from left to …
notation - What does := mean? - Mathematics Stack Exchange
Mar 18, 2011 · It's one common notation for stating that the left-hand side is defined as (in contrast to equal to) the expression on the right-hand side.
algorithms - Meaning of “arg min” - Mathematics Stack Exchange
Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, …
How do the floor and ceiling functions work on negative numbers ...
It's clear to me how these functions work on positive real numbers: you round up or down accordingly. But if you have to round a negative real number: to take $\,-0.8\,$ to $\,-1,\,$ then do you ta...
soft question - Counterintuitive examples in probability - Mathematics ...
Feb 12, 2017 · I want to teach a short course in probability, and I am looking for some counterintuitive examples in probability. I am mainly interested in the problems whose results seem to be obviously …
differential geometry - Surface Element in Spherical Coordinates ...
Apr 14, 2012 · Because of the striking fact that (a) The area of [a slice of the spherical surface between two parallel planes (within the poles)] is proportional to its width. . . . here's a rarely (if ever) …