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

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3answers
33 views

If 0.00 currencyx is 1380 then how much is 1.00 currencyx

If for USD 1380 you get 0.000198670 lets say Currency X then whats the price of 1.00000 Currency X and what formula should I apply
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2answers
19 views

Drawing straight line graph with large scale

I was given the equation: $$y(x) = 10000x + 150000 ,~~ 0 \lt x \lt 60$$ and was asked to draw the graph. I know that it is a positive straight line intercepting through $150000$, but I don't know ...
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2answers
41 views

Calculator similar to Desmos but for 3D

Is there a calculator with functionality similar to Desmos but in 3 dimensions? I am looking to learn about families of quadric surfaces so I am looking for a 3D calculator with sliders.
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1answer
93 views

Weird stuff happening with complex numbers on a ti-84

So, I'm trying to do some calculations for my Electrical engineering homework. This requires a bit of algebra with complex numbers. I have been finding that some of the calculations that my calculator ...
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1answer
58 views

Graphing an ellipse on TI-nspire CX CAS

How do I graph an ellipse on a TI-nspire CX CAS? I know how to graph an ellipse with the equation $$\frac{(x-h)^2}{a^2} + \frac{(y-k)^2}{b^2 }=1$$ but I don't know how to put coefficients in the ...
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1answer
11 views

Calcution's functionality & webapplication

Is there a application in Internet or a function in a calculator at windows 7 to make a caculation containing 400 and 360? It is easier to calculate if numbers have low numbers.
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1answer
83 views

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 / ...
3
votes
0answers
173 views

How does my $10\times10$ abacus work?

How does this $10\times10$ abacus work? More specific: Counting: is it common to count from 1 to 100, or from 1 to 9.999.999? How does addition work? How does multiplication work? Are there any ...
2
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0answers
138 views

Solving $x$ for $y = x^x$ using a normal scientific calculator (no native Lambert W function)?

Solving $x$ for $y = x^x$ using Lambert W function is clear enough thanks to this handy answer, but as I'm using the solution in a network support document I need it in a form that can be solved on a ...
1
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0answers
438 views

Multivariable polynomial long division calculator

Is there code/online calculator that divides polynomials in multiple variables? The answers are always other polynomials, but they have many variables.
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0answers
23 views

Using a casio calculator for numerical methods

I am just starting numerical methods, and I find myself typing in an equation into my calculator to get an answer, then re-inputting the answer to that iteration back into the equation, repeat etc. I ...
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0answers
15 views

How to find a model of the form $v = at^3 + bt^2 + ct + d$ with TI NSpire?

A homework problem in my book states: An experimental vehicle is tested on a straight track. It starts from rest, and its velocity v (in meters per second) is recorded every 10 seconds for 1 minute. ...
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0answers
39 views

Calculator for math/finance/statistics that can store .PDF

I need a new calculator. And rather than googling and doing research, I figured somebody on stackexchange probably know this. Requirements/facts about me Symbolic calculator (can do double ...
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0answers
351 views

equivalent calculator keys to: inv ln

What are the equivalent keys on a calculator to inv + ln? My calculator doesn't have a inv key:
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0answers
164 views

TI-89 calculating incorrect power regression.

I have a TI-89 and use the "Stats/List Editor" to calculate power regression. My numbers are as follows (X , Y): 10 169 15 120 20 94 25 78 30 67 35 58 When ...
0
votes
0answers
277 views

Is there any derivative that the Ti-Nspire can't do?

A fellow student was showing off by quickly have his ti-nspire solve the homework problems. Just wondering if there is any derivative that the ti-nspire would mess up on. Just where is the limit ...