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How to find pi on the calculator - Texas Instruments TI 30XIIS Scientific Calculator

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The Pi key is marked.

Posted on Feb 11, 2016

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Posted on Jan 02, 2017

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What is pi eqaul to


The circumference (perimeter) of a circle is given by the formula
C = 2 (pi) (r), where r is the radius. Since radius is half of the diameter, d = 2 (r), so C = (pi) d.
Dividing both sides by d to get pi by itself, pi is the circumference of a circle divided by the diameter.

Pi is irrational, meaning that it goes on forever, without repeating numbers and cannot be represented as a fraction.

In everyday life, we often use 22/7 as an approximation of pi. Other people use 3.14.

I have memorized what my calculator gave me plus one more decimal, 3.1415926536.

Others have memorized it to thousands of digits and people have spent their lifetimes calculating pi to more and more decimals. Books have been written about pi.

Some schools celebrate Pi Day, since Pi begins with 3.14, it is celebrated on March 14th.

Good luck,

Paul


https://en.wikipedia.org/wiki/Pi

Jan 04, 2017 | Office Equipment & Supplies

1 Answer

Unable to use pi (instead of 3.14) when using formulas which require pi


If you want to square an expression enclose it in parentheses and raise to the second power.


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Jul 27, 2015 | Casio Scientific Calculator Fx-82es Plus

1 Answer

It wont give me the value when i multiply like 6 x pi


Your calculator may be able to use the symbol Pi. If it gives you a result with Pi, you should convert it to a decimal approximation. There must be a key to convert.

Nov 12, 2013 | Canon F-719SG Green Scientific Calculator...

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Making PI a variable in TI-82 Calculator


The calculator does not have a Computer Algebra System or CAS: It cannot handle non numerical quantities. Every letter symbol must have a value stored in it prior to being used. If no value is stored in a letter symbol, value 0 is assigned to it. Sorry.
As to calling Pi a variable, I would not got that far, even if the calculator would give me 2Pi.
TI calculators that have a CAS are the TI92 Plus, the Voyage 200 PLT, and the TI Nspire CAS, TI Nspire CX CAS.

Apr 14, 2012 | Texas Instruments TI-82 Calculator

1 Answer

I have to multiply by Pi on my exam paper. (I'm wondering where the Pi button is on the Casio Fx-300ES Calculator)?


To insert pi on this calculator press [shift] [x10x] . (you can see the pi symbol above and to the side of this button).

Apr 05, 2011 | Casio fx-300ES Calculator

1 Answer

When i try to use the pi key with another operation it does not compute. For example if I am trying to multiply 10 times pi, the calculator reads 10pi


Press the FD (fraction to decimal) button after you calculate 10 times pi, This will give you the
calculation in decimal form.

Mar 11, 2011 | Texas Instruments TI-15 Explorer...

1 Answer

How do you use the pie button on a casion scientific calculator fx-83ES


Simply press SHIFT [pi] to insert the value of pi into an expression. For example, to calculate pi/2, press SHIFT [pi] / 2 =

Jan 20, 2011 | Casio FX83ES Scientific Calculator

1 Answer

I'm trying to find the inverse cotangent of -2/3, and whenever I input Tangent^-1 (1/(-2/3)) it gives me .98279, however for homework we are using this software called Hawkes learning Center and it gives...


Aren't you getting -.98279 (a negative value)?

The tangent function (and the cotangent) are periodic, with a period of pi. The calculator will give you a result from -pi/2 to pi/2, while the Hawkes apparently is giving you a result from 0 to pi. The difference between 2.1588 and -.98279 is pi.

To make the calculator's result match Hawkes, if the (co)tangent gives you a negative value, simply add pi to it.

Jan 19, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

How do I enter pi on Casio fx-115es?


Enter your number then press (shift) then (X10x) key. That will enter pi. then press (=) for the answer.

Jul 03, 2009 | Casio FX-115ES Scientific Calculator

1 Answer

Radian mode does not work properly


-1E-13 is a very small number. When doing this kind of a problem you can regard 1E-13 as 0.

Remember that pi is an irrational number. It is only estimated on your calculator. I just played around with a TI-83 and found the following answers:

cos(pi/2) = 0
cos(2*pi + pi/2) = 0
cos(4*pi + pi/2) = 1E-13
cos(20*pi + pi/2) = -1E-13

As you know, that correct answer to each of these is 0. The calculator gives non-zero answers because some very small errors are accumulating. There is nothing wrong with your calculator.

Nov 20, 2007 | Texas Instruments TI-83 Plus Calculator

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