Calculators

Two ways.

Easy way first. Simply push the S-D button. This will toggle fractions and decimals.

More permanent way:

SHIFT

SETUP (also the MODE button)

2 (Select option 2 Line 10)

That's it!

When you want to go back to fractions then:

SHIFT

SETUP

1 (Selection option 1 Mth 10)

Now your back in fraction mode.

Texas Instruments. which is the company that makes the calculators that say T.I.

The first pager was invented in 1962 by Ma Bell and was a radio paging system. Pagers were popular in the 1980's and 1990's.

The first hand held electronic calculator was developed in 1967 by a team of engineers who worked for Texas Instruments. The team was conformed by Jack Kilby, Jerry Merryman and Jim Van Tassel.

None have been made yet, due to the severe programming limitations put in place by TI. User input is minimally available, and programs cannot draw anything.

Post by Hagefade:

There is now:

http://www.ticalc.org/pub/nspire/basic/games/

enjoy!

It is easier to use a spreadsheet than a pen and paper because with a spreadsheet, mistakes can easily be corrected by canceling and repeating. Spreadsheets also carry out automatic scientific calculations such as mode, median and standard deviation.

Use an internet search engine such as Google, Yahoo or Live.com and it will direct you to several free and commercial unit conversion tools.

Some internet search engines can convert between units directly in them. Type in the units you want to convert from and it may suggest common conversions for you directly.

By 1970 a calculator could be made using just a few chips of low power consumption, allowing portable models powered from rechargeable batteries. The first portable calculators appeared in Japan in 1970, and were soon marketed around the world. These included the Sanyo ICC-0081 "Mini Calculator", the Canon Pocketronic, and the Sharp QT-8B "micro Compet". The Canon Pocketronic was a development of the "Cal-Tech" project which had been started at Texas Instruments in 1965 as a research project to produce a portable calculator. The Pocketronic has no traditional display; numerical output is on thermal paper tape. As a result of the "Cal-Tech" project Texas instruments was granted master patents on portable calculators. Sharp put in great efforts in size and power reduction and introduced in January 1971 the Sharp EL-8, also marketed as the Facit 1111, which was close to being a pocket calculator. It weighed about one pound, had a vacuum fluorescent display, rechargeable NiCad batteries, and initially sold for $395. However, the efforts in integrated circuit development culminated in the introduction in early 1971 of the first "calculator on a chip", the MK6010 by Mostek,[8] followed by Texas Instruments later in the year. Although these early hand-held calculators were very expensive, these advances in electronics, together with developments in display technology (such as the vacuum fluorescent display, LED, and LCD), lead within a few years to the cheap pocket calculator available to all. The first truly pocket-sized electronic calculator was the Busicom LE-120A "HANDY", which was marketed early in 1971. Made in Japan, this was also the first calculator to use an LED display, the first hand-held calculator to use a single integrated circuit (then proclaimed as a "calculator on a chip"), the Mostek MK6010, and the first electronic calculator to run off replaceable batteries. Using four AA-size cells the LE-120A measures 4.9x2.8x0.9 in (124x72x24 mm). The first American-made pocket-sized calculator, the Bowmar 901B (popularly referred to as The Bowmar Brain), measuring 5.2×3.0×1.5 in (131×77×37 mm), came out in the fall of 1971, with four functions and an eight-digit red LED display, for $240, while in August 1972 the four-function Sinclair Executive became the first slimline pocket calculator measuring 5.4×2.2×0.35 in (138×56×9 mm) and weighing 2.5 oz (70g). It retailed for around $150

you

Yes if pi=22/7.

If you turn the calculator around:

5318008-boobies

0.7734-hello

378806-gobble

55378008-boobless

53177187714-hillbillies

57738461375-sleighbells

7734206-go2hell

5304577351-i sell shoes

707+707=1414- lol+lol=hihi

3-- (turn your head 90o)

It is used to make numerical calculations.

In visual basic 6.0:

Public input1, input2, number1, output, decimal2, operand, input3 As Double

Public operand2, oprand3 As String

Public decimal3 As Boolean

'Input

Private Sub Command1_Click(Index As Integer)

number1 = number1 + 1

'input1 decimal

If operand = 0 And decimal3 = True Then

number2 = 1 * (10 ^ (number1 - 1))

decimal2 = Index / number2

input1 = input1 + decimal2

Text1.Text = input1

End If

' input2 decimal

If operand > 0 And decimal3 = True Then

number2 = (1 * (10 ^ (number1 - 1)))

decimal2 = Index / number2

input2 = input2 + decimal2

Text1.Text = input1 & " " & operand2 & " " & input2

End If

'input1 single digits

If number1 < 2 And operand < 1 And decimal3 = False Then

input1 = Index

Text1.Text = input1

End If

' input1 multiple digits

If number1 > 1 And operand < 1 And decimal3 = False Then

input1 = (input1 * 10) + Index

Text1.Text = input1

End If

'input2 single digit

If operand > 0 And number1 < 2 And decimal3 = False Then

input2 = Index

Text1.Text = input1 & operand2 & input2

End If

'input2 multiple digits

If number1 > 1 And operand > 0 And decimal3 = False Then

input2 = (input2 * 10) + Index

Text1.Text = input1 & operand2 & input2

End If

End Sub

' Plus/Minus

Private Sub Command2_Click()

If operand < 1 Then

input1 = -1 * input1

Text1.Text = input1

End If

If operand > 1 Then

input2 = -1 * input2

Text1.Text = input1 & " " & operand2 & " ( " & input2 & " ) "

End If

End Sub

' Equals

Private Sub Command3_Click()

Select Case operand

Case Is = 1

output = input1 + input2

Text1.Text = input1 & operand2 & input2 & "=" & output

Case Is = 2

output = input1 - input2

Text1.Text = input1 & operand2 & input2 & "=" & output

Case Is = 3

output = input1 / input2

Text1.Text = input1 & operand2 & input2 & "=" & output

Case Is = 4

output = input1 * input2

Text1.Text = input1 & operand2 & input2 & "= " & output

End Select

input3 = output

number1 = 0

input1 = 0

input2 = 0

output = 0

operand = 0

number2 = 0

decimal2 = 0

decimal3 = False

End Sub

'Plus

Private Sub Command4_Click()

operand = 1

operand2 = "+"

Text1.Text = input1 & operand2

number1 = 0

number2 = 0

decimal3 = False

End Sub

'Minus

Private Sub Command5_Click()

operand = 2

operand2 = "-"

Text1.Text = input1 & operand2

number1 = 0

number2 = 0

decimal3 = False

End Sub

'Divide

Private Sub Command6_Click()

operand = 3

operand2 = "/"

Text1.Text = input1 & operand2

number1 = 0

number2 = 0

decimal3 = False

End Sub

' Multiply

Private Sub Command7_Click()

operand = 4

operand2 = "*"

Text1.Text = input1 & operand2

number1 = 0

number2 = 0

decimal3 = False

End Sub

' POINT

Private Sub Command8_Click()

decimal3 = True

End Sub

' ANS

Private Sub Command9_Click()

If operand = 0 Then

input1 = input3

Text1.Text = input1

End If

If operand > 0 Then

input2 = input3

Text1.Text = input1 & " " & operand2 & " ( " & input2 & " ) "

End If

End Sub

This can be transalted into other VB scripts as the code is quite simple and easy to follow however i have put headings for each section as a guide to it's function

First, create your list of numbers by typing: {1,2,3,4,5,6,7,8,9,10} hit 'STO>' button, which means "store as"

then name your list, something like 'L1'

and HIT ENTER to store

Now, hit STAT / CALC / 1-VAR STATS <Enter List name>...

and then scroll down until you see:

n = 10

minX = 1

Q1= 3

Med= 5.5

Q3= 8

maxX= 10

Yes, you can process it on a TI-83 or higher, your calculator can compute it for you. To do it your problem must include a list of data points. To enter the data on your calculator, push STAT. Then go to EDIT. In edit there is a chart. The top row says L1, L2, etc. If there are already values in your lists, you can clear them by going up and highlighting L1, press clear, and then the down arrow. That will clear the list. To enter data, move to the rectangular box under L1. Type in your first value and press enter. Continue to do so until all values are entered under list one. Next, press STAT. Move over to CALC and select 1-Var Stats. Press enter. A buch of data will pop up. The symbol on your calculator for standard deviation is Sx, and there will be a value listed. That is the standard deviation for your data set. Some other things that are good to know with the info we have produced: _ X = mean/average of data n = number of data points minX = minimum x value Q1= quartile 1 Med = median Q3 = quartile 3 maxX = maximum x value Sx = Standard Deviation And a Q looking thing and a X is (Population Standard deviation) "Qx"

The disadvantages of calculators is that they are no longer practical or convenient. Unless scientific in nature, most people use the calculators on their smart phones and wireless devices. While stand alone calculators are still in use, their popularity has immensely decreased across the nation.

Before calculators, trig functions in general were evaluated using a slide rule (fast, but accurate to only 2-3 significant digits, and interpolation tables, which required interpolating between values in a printed table of function values to get up to 3-4 significant digits. Tricks were a big part of the repertoire - for example for small angles of less than about 7 degrees, sin and tangent are equal to the angle in radians.

Spherical geometry was fairly labor intensive, to say the least, since several trig functions are used for even simple distance and angle calculations. Special tables were printed for common cases, such as plotting great circle distances and bearings for terrestrial navigation.

In a desert island setting, given infinite time and desire, trig functions can be calculated using various converging series, with the Taylor series being a commonly taught (though slow!) example.

china

The E symbol means 'times ten to the power of'.

So 4E7 means 4 x 107 which is 40,000,000.

A number that one is solving for-the unknown.

Usually 2nd Memory... or 2nd Var-Link depending on your model. Then you will see a list you can delete from.

You seem to be unaware of the fact that you can obtain the answer easily by using the scientific calculator that comes as part of your computer. In general the nth root is extremely difficult to find.

square root of 125= 25 times 5 under the radical (25 has a square root so you can take that out of the radical)= 5 times the square root of 5 (Thats your final answer with no calculator)

To find the Volume: (1) find the flat area (A = Pi*R²), (2) multiply the Area by the Depth/Height (V = AD). To find how much water the vessel will hold: water = 231 cu inches per gallon, or 7.481 gal per cu ft.