# Tagged Questions

Questions regarding calculators such as the TI-83 (Plus), HP 50g, and other calculator models.

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### Store a constant on a TI 84

On my TI 84 I have a variable E with the value 8.854e-12, ie. Epsilon not, which I use for my physics class. I also have G and M for 6.67384e-11 and 4pi e-7, both of which I have found I need for my ...
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### How to graph hypocycloid on graphical calculator

I want to know how I can graph a hypocycloid using my TI-nspire calculator. I already know the parametric equations for hypocycloids which is: Parametric Equations of Hypocycloids Does anyone know ...
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### help - how to calculate distance between to points ( latitude/longtitude) without ACOS / ATAN

I need to calculate the distance between to points (latitude/longitude) in WebI (SAP system) and I have limited formulas there (don't have : ACOS / ...
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### Calculator model with mod function?

I'm wondering does anyone know of a scientific calculator with a mod function? In C# this is shown as follows (just in case there are any other mods that a mathematical non-savant such as myself ...
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### Why won't my calculator display this fraction? [closed]

I am using my calculator to convert 2.6(457) 457 is recurring. This should be 2 6451/9990, but my calculator only displays the decimal 2.645745764. How can I fix this, incase I need to do this in an ...
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### TI-nspire CX CAS Trig Integration / Graphing

I am having trouble with the TI-nspire CX CAS solving trig integration and graphing. When I try trig integration, I get this result: Integral from 0 to 6pi of sqrt((xsinx)^2+(xcosx)^2) dx it returns ...
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### Pocket Calculators- Obsolete? [closed]

I hope this fits into "software that mathematicians use" within the acceptable topics for this site. Are there still any instances where pocket calculators prove useful to professional mathematicians ...
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### Why does my calculator show -2^2 as -4

I'm worried that this will be a spanner in the works when I'm using a calculator in an exam , I know that $-2^2= 4$ since $(-2) \cdot (-2) = 4$. So why does my calculator show it as negative 4 ? Does ...
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### Order of powers

Which of the following is $a^{b^c}$ equal to? $a^{(b^c)}$ or ${(a^b)}^c = a^{bc}$ This is probably a really basic question but I can't seem to find the answer anywhere.
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### A nice way to do Euler's method on a calculator?

As part of the calculator paper for IB (International Baccalaureate), we may be asked to do Euler's method, for say, 10 iterations. While it is feasible to do with a calculator (slightly easier if ...
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### How to convert decimal answers into trig simplifications (symbols)?

When I use the calculator to get the result of this integral I get a decimal number. However, in my calculus book, as shown on the picture, the answer was represented using some trig symbols! Is ...
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### Software to calculate an integer sum?

There is a result I want to calculate, but I don't know if there is any software that can help me with this. Anyone knows what could I use to help me? Any answer is much appreciated The formula is ...
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### Different results when multiplying matrices with a calculator

I'm having a big trouble when I have to multiply 2 matrices. I think I have a problem with my calculator (HP 50g) because I get a correct answer but not the one my professor has. For example, I have ...
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### How to find $x$-intercept on TI-83/TI-84 calculator without having to set the bounds for each intercept?

Finding $y$-intercepts is very easy on a TI-83/TI-84 calculator. All you have to do is graph the function and use 2nd $\to$ Trace...
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### what does sin button do? I have always wondered why calculators have this function [closed]

What is the sin button on a calculator used for? I have always wondered why and how you would use this function.