Jul 3, 2017 · However, for a mathematician, ± means (as it is read) plus OR minus. The most common use at a lower level is definitely with square roots. For example: (-x)²=(-x)(-x) =xx [because minus signs cancel] Therefore minus x squared is also equal to normal x squared. So if you were asked the question: "What is x if x²=25?"

Jun 9, 2020 · It's meant to be paired with the other plus/minus symbol, but it's inverted to show that it's the opposite of whatever the first one is. The top symbols together make one correct formula, the bottom symbols together make another correct formula. So cos(A+B) = cos(A)cos(B) - sin(A)sin(B), and cos(A-B) = cos(A)cos(B) + sin(A)sin(B).

“Plus or minus” usually indicates a range of confidence. We predict the temperature to be 66 degrees plus or minus 3 degrees. That means they are predicting the weather to be between 63 and 69 degrees.

Dec 10, 2014 · Welcome to /r/Netherlands! Only English should be used for posts and comments. This rule is in place to ensure that an ample audience can freely discuss life in the Netherlands under a widely-spoken common tongue.

Apr 4, 2021 · If you don't want to use inline math, you can use the popup emoji box (Winkey + semicolon) click the Omega sign at the top of the box, then the infinity sign at the bottom and it should be in that category. OR for faster typing: Hold the Alt key down and type : 0177 or 241 for ±

Jun 10, 2022 · Yes, the the minus sign starts out vertical and invisible, the plus starts visible, then the plus rotates 90 degrees, and the minus rotates 90 degrees in the opposite direction and ends with the minus visible and the plus invisible.

Jun 22, 2023 · In Algebra there's a plus or minus sign ( ... Top posts of June 22, 2023. Reddit . reReddit: Top posts of ...

May 16, 2022 · Why are you putting a space for the plus minus sign when google says that you should do it for an equals sign? Huhlguess’ link says that there should be no space when the sign is directly related to the value of the number (e.g. +4 -4). I would assume plus minus would fit into that bucket and so no space..

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Aug 11, 2020 · Yes, you can define ±(x, y) = x+y, x-y, and it will automatically work in infix form.. For your case, though, that wouldn't be enough, as you'll get a tuple in numerator and a number in denominator.