# Questions tagged [calculator]

Questions regarding calculators being used to solve math problems. A clear statement of the math problem to be solved is required.

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### Simple question regarding fraction to ratio conversions

Supposed you have a ratio expressed in the form 4:8 . How do we convert this to fraction? One answer gives me 1/2 in its simplest form. Chatpt produces the same result [enter image description here][...
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### Distribute percentage of quota % evenly

Let's say I have 65% of a company and my partner has 15% of the same company, so together we both have 80% of the company. We want to give a new partner 7% of our company, and for that to happen, we'...
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### Why do different calculators disagree on $\cos(452175521116192774 )$?

I want to calculate cosine of 452175521116192774 radians (it is around $4.52\cdot10^{17}$) Here is what different calculators say: Wolframalpha Desmos Geogebra Python 3.9 (standard math module) ...
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### Calculator Confusion: fractional roots of negative numbers [duplicate]

(Calculator type: Sharp EL-W531) When I put in the power (-0.2)^(-4/5) it says "calculation error." Is this not just raising $(-0.2)^{-4}$ then taking the ...
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### How do I multiply using this "Addiator"-style calculator?

I've got an old "Addiator"-style calculator (pictured below), but not the instruction manual. I know how to use it to add (place the stylus next to a digit and pull down, pushing up and ...
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### Quickest way to do n/(n+m) on a 4-function calculator

Let's say the problem I want to solve is: I have n "widgets" and m "doodads". I want to know what percentage of the total items are widgets. Let's say I only have a basic 4-...
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### Why does my calculator say that the cube root of $0$ is "Infinite"?
In all my years, I have known that $0^x = 0\space\space\forall\space\space x \in \mathbb{R}^+ - \{0\}$. Today, I tried calculating $\sqrt[3]{0}$ on my phone calculator, but I get an unexpected result ...