Math and Arithmetic

Calculators

Sto on the calulator means it will save the number in the memmory then pres m to get it back

319320321

Units of Measure

Public Health and Safety

Temperature

Calculators

Here is a way from C to F that is easy to do in your head;

Say you see 28 C

Double that.. that makes it 56

Subtract 5 (actually 5.6, you are moving one decimal to the left..but leave the .6 off)

That gives you 51

Add 32

So 28 C = 83 F

(I have not found a similar way for F to C)

F= C/5X9+32= Celsius

C= F-32/9X5= Fahrenheit

293294295

Engineering

Calculators

The device tended to jam and malfunction because the parts of the machine were unreliable.

289290291

Math and Arithmetic

Calculators

It means mark up. But, I can't remember how to use it. I know you can find out how much a 15% markup on something would be, etc., but I've got to figure out how to use it again. It's been awhile.

Hope this helps explain the maths...

£100 x 15 MU gives £115...ie same as x 1.15

No idea what the plus minus divide buttons do, probably spurious answers

265266267

Weight and Mass

Calculators

100 grams

123

Calculators

TI-83 & TI-84 Graphing Calculators

To get the inverse log function, press 2ND and then choose 10x. (Above LOG.)

To get the inverse of a natural log function, press 2ND and then choose ex. (Above LN.)

252253254

Math and Arithmetic

Calculators

-- There may be a small hole in the back of the calculator labeled "reset". If so,

the calculator may be reset by carefully inserting the end of a straightened

paper-clip a slight distance into the hole, and pressing the tiny switch located

just inside the hole.

-- If such a reset switch is not provided, then the calculator is reset by momentarily

disconnecting the battery.

223224225

Math and Arithmetic

Calculators

How To

use a program or the normal error function table :p

197198199

Math and Arithmetic

Mechanical Engineering

Calculators

How To

Well, First get the Dia of material in inches = A

Get the thickness of material in inches = B

Now, Multiplier for M.s is 80 & for soft material like copper, brass, alluminium is 6 0.

now put the A X B X MULTIPLIER = TONNAGE

Example,

1 inch dia

5mm thickness

Material is M.S.

SO TONNAGE is : 1 x 0.1968 x 80 = 15.75 is tonnage required...

ENJOY TONNAGE FORMULA.

103104105

Math and Arithmetic

Jokes and Riddles

Calculators

If this is middle school math homework, the answer is:

He already knew how many pockets he had.

145146147

Computers

Calculators

TI-83 & TI-84 Graphing Calculators

Try removing the batteries, if that doesn't work did the calculator come with a cable connecting it to the computer? (If it does plug this into the computer and it should hopefully un-freeze)

177178179

Christianity

Calculators

Trigonometry

It is an abbreviation for sine, and that word together with cosine and tangent are used in simple trigonometrical calculations about right-angled triangles. If we take the shortest side of the triangle, together with the hypotenuse (the longest side) these two sides enclose an angle. The sine of that angle tells us how long the third side is compared with the hypotenuse. Draw a triangle ABC with the right angle at A, the shortest side called AB, the hypotenuse called BC, and the remaining side CA, then if we wanted the sine of angle B we would divide the length of CA by the length of CB. If you want to find the Sine of 50 degrees on a calculator you would press buttons in this order: 50, then the sin button, and the answer would be given almost instantly in the calculator's window. That's much quicker than having to calculate for yourself.

179180181

Inventions

Computer History

Calculators

Blaise Pascal worked on the calculator for three years between 1642 and 1645. This calculator, called the Pascaline, was like a mechanical calculator of the 1940s. He created it to help his father with tax collecting.

However, the first calculators were abaci, and were often constructed as a wooden frame with beads sliding on wires. Abacuses were used centuries before the adoption of the written Arabic numerals system and are still used by some merchants, fishermen and clerks in China and elsewhere.

The first mechanical calculator was made by Blaise Pascal of France, called the Pascaline, in 1642.

The first calculators were abacus frames. These go back to earlier than 2000 bc. Names and details are unavailable; they have been long lost. The slide rule was invented by W. Oughtred in 1632. The first mechanical adder dates to about 1650 by Blaise Pascal in France. The first practical adder/lister was patented in 1885 by William Burroughs of Rochester, New York. The first hand held calculator was invented by Jack Kilby, Jerry Merryman, and James Van Tassel in 1966 at Texas Instruments.

145146147

Calculators

An annuity calculator Canada would be some kind of retirement income calculator for Canadian. It uses your account balance, years of retirment, inflation and several other aspects to calculate a proper figure for the retirements, and in this case for a Canadian.

163164165

Civil Process

Calculators

A personal injury calculator could be as simple as a net proceeds calculator. You enter the amount of the gross settlement, the percentage being charged by the attorney in fees, and the amounts of the costs and unpaid medical bills or other lienholders, and the sheet would do the rest.

162163164

Math and Arithmetic

Algebra

Calculators

TI-83 & TI-84 Graphing Calculators

For example, if you want to find the least common multiple of 17 and 256:

Press Math and select NUM at the top with the arrow keys. Scroll down and choose the option that says lcm(. Then type the first number, followed by a comma, followed by the second number. Put in an ending parenthesis (If you don't, it will still work, but this is good practice for when you get to more complex problems.) You should see:

lcm(17,256)

Press ENTER. In this case, the answer will be 4352.

161162163

Television and Video

Commercials

Calculators

1982

878889

United Arab Emirates

Dubai

Calculators

Not 100% sure, but check Jumbo elecronics. ^^

145146147

Math and Arithmetic

Algebra

Calculators

youcan get a specific type like the TI-34 (MOST BEST) but you can get a random one mostley i get all of my school suplies @ staples ( WHARE I GOT THE TI-34)

145146147

Math and Arithmetic

Calculators

Mercury is a heavy metal that is very toxic and is a liquid at room temperature. For this reason I do not believe that there would be any mercury in calculators. I do not know why mercury would be used in manufacturing. I don't believe is is commonly used in computer chips. Whether or not mercury is actually used in calculators or in manufacturing of calculators depends varies by manufacturer.

133134135

Math and Arithmetic

Calculators

To find anti log of a number enter the number as the exponent of 10.

115116117

Math and Arithmetic

Algebra

Calculators

TI-83 & TI-84 Graphing Calculators

Press second (2ND) and then memory (MEM, above +). Then select the seventh option, Reset.... In order to delete everything, use the arrow keys to select ALL on the top and then press enter to select All Memory....

116117118

Math and Arithmetic

Algebra

Calculators

TI-83 & TI-84 Graphing Calculators

From math class, some trigonometric identities:

cot x = 1/tan x

csc x = 1/sin x

sec x = 1/cos x

There are no built-in cot or csc formulas, so use the above.

Remember that these give errors when tan x, sin x, or cos x are equal to 0.

127128129

Microsoft PowerPoint

Calculators

Math History

A good rule of thumb is to only use slide transitions that you have heard of from the movie industry such as cut or fade. Then only change them when you have a major change in theme. Such as Part 1 and Part 2 would feature only two transition types -one for each part.

118119120

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