Question about Sentry CA656 Calculator

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Posted on Jun 13, 2011

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The EXP key is what's marked EE on most calculators and adds a decimal exponent. 2 EXP 3 means 2*10^3 which is 2000 as you've discovered.

You need to use the x^y key (just above DEL) instead.

Posted on Sep 22, 2010

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I am not sure what you mean. Even politicians use the term exponential so it has become blurry.

16=2^4 The power function is related to the exponential.

16=1.6*10^1 Scientific notation. Scientific notation is an exponential display format.

Take your pick.

16=2^4 The power function is related to the exponential.

16=1.6*10^1 Scientific notation. Scientific notation is an exponential display format.

Take your pick.

Dec 10, 2013 | Office Equipment & Supplies

Make sure you use the +/- key (located just right of the decimal point key) to enter a negative number. For example, to raise 3 to the -2 power, press 3 y^x 2 +/- =

Jan 13, 2013 | Texas Instruments BA II PLUS Financial...

You are not using it correctly. To calculate the exponential of a number you use the key sequence [SHIFT][LN] to access the exponential function. Then type it the exponent (positive or negative) and close the parenthesis.

You do not use the power key (^)

The exponential function is not affected by the angle unit when you are using real values.

You do not use the power key (^)

The exponential function is not affected by the angle unit when you are using real values.

Jul 03, 2012 | Texas Instruments TI-84 Plus Calculator

It's giving you the correct answer. It's calculating the negative of 25 squared. 25 squared is 625, and the negative of that is -625.

If you want to calculate the square of negative 25, you need to tell the calculator that.

Press ( (-) 2 5 ) ^ 2 ENTER .

If you want to calculate the square of negative 25, you need to tell the calculator that.

Press ( (-) 2 5 ) ^ 2 ENTER .

Sep 05, 2011 | Texas Instruments Office Equipment &...

Display Format

To change the exponential display format, press the [MODE] key 3 times.

Fixed number of decimal places:

Press 1: Scientific Notation: 0

Press 2: SCI: 0

Press 3: NORM

You will then be prompted for NORM 1 or NORM 2. CHOOSE NORM 1

To return the calculation mode and setup to the initial defaults, press [SHIFT] [CLR] [2]

[=]. This will return the calculator to the following settings:

Calculation mode COMP

Angle unit Deg

Exponential display format Norm 1

Fraction display format a b/c

Decimal point character Dot

Percentage Calculations

Apr 13, 2011 | Casio FX-300MS Calculator

No post is an adequate substitute for reading the manual. Here is the meaning of some of the primary keys.

- hyp.: To calculate hyperbolic functions: hyp + sin calculates the hyperbolic sine, hyp + cos calculates the hyperbolic cosine, hyp + tan calculates the hyperbolic tangent (sinh, cosh, tanh)
- sin. To calculate the sine of an angle
- cos.To calculate the cosine of an angle
- tan. To calculate the tangent of an angle
- yx : y with raised x, calculates general powers
- ln: calculates the natural logarithm (log in base e)
- log: calculates the logarithm in base 10
- ab/c : used to enter mixed fractions; 13 ab/c 7 ab/c 5 enter the mixed fraction 13 and 7/5
- x10 to the X : calculates the exponential function on some calculators. used to enter powers of 10 as in scientific notation; 6.02x10^23 is keyed in as 6.02 EXP 23 (Avogadro's Number of Chemistry and Physics)
- (-).: This is the change sign. It negates the value of a number. If a result is positive it makes it negative, and if it is negative it makes positive
- deg ' " : used to convert between decimal degrees and degree, minute, second.
- rcl : used In conjunction with a memory location, recalls the contents of the memory ( if there is one memory M, extracts what is in M and displays it)
- sto: used in conjunction with the name of a memory register, stores a result or an entry in the relevant memory.
- M+ adds the content of the display to the constant memory M

Jan 13, 2010 | Casio FX-115ES Scientific Calculator

Enclose any negative number between parentheses before squaring.

If you enter -4^2, where - is the negation, the result will be -16 because of the priority rules: exponentiation (power) has priority over negation.

If you enter (-4)^2 the result will be 16, because parentheses have priority over the squaring: the 4 is negated then the result is squared.

If you enter -4^2, where - is the negation, the result will be -16 because of the priority rules: exponentiation (power) has priority over negation.

If you enter (-4)^2 the result will be 16, because parentheses have priority over the squaring: the 4 is negated then the result is squared.

Dec 30, 2009 | Casio FX-300MS Calculator

Hello,

Frankly, I do not understand what you want.

I will try to guess.

Calculate the exponential of 135

Use the [2ndF][LN] key to access the exponential e^x

[2ndF][e^x] 135 [=] result is 4.263389948 x 10^(58)

or 4.263389948E 58

Represent 135 in scientific notation

135 =1.35 x10^2 or 1.35 E2

Represent 135 in Engineering Notation

135=135E0

If none of the above answers your question, maybe you should state clearly what you want, I am no seer.

Hope it helps.

Frankly, I do not understand what you want.

I will try to guess.

Calculate the exponential of 135

Use the [2ndF][LN] key to access the exponential e^x

[2ndF][e^x] 135 [=] result is 4.263389948 x 10^(58)

or 4.263389948E 58

Represent 135 in scientific notation

135 =1.35 x10^2 or 1.35 E2

Represent 135 in Engineering Notation

135=135E0

If none of the above answers your question, maybe you should state clearly what you want, I am no seer.

Hope it helps.

Oct 26, 2009 | Sharp EL-531VB Calculator

Actually, no. The CA 656 doesn't have a fraction mode.

Dec 06, 2008 | Sentry CA656 Calculator

Ex. for 5^3, press 5, then "yx" (beneath "OFF" button), then the power (3), then press =...
5 --> yx --> 3 --> = --> 125.
Hope this helps!

Sep 22, 2007 | Texas Instruments TI-30XA Calculator

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