Question about Texas Instruments TI-30XA Calculator

# 1x10 to the power negative 5 - Texas Instruments TI-30XA Calculator

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1 EE +- 5

EE is just above the 7, +- is just to the right of the decimal point.

Posted on Sep 10, 2010

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Posted on Jan 02, 2017

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## Related Questions:

### This is what my question says. some scientists estimate that there are 100 billion stars in the milky way galaxy.In standared form,100 billion is 100,000,000,000. write 100billion in exponential form.

1=10^0
10=10^1
100 (2 zeroes after the 1)=1x10^2
1000 (3 zeroes after the 1)=1x 0^3
1000 000 (one million) =1x10^6
1 billion =1 000 000 000 =1x10^9
100 billions =100x 1000 000 000=(1x10^2)x(1x10^9)=
1x(10^2)x(10^9)
Now use the power multiplication rule (a^n)x[a^m)=a^(m+n). Thus
1x(10^2)x(10^9)=1x10^(2+9)=1x10^(11)
100 billions =1x10^11=10^11.

Sep 10, 2013 | Computers & Internet

### TI-84 Plus Silver Edition. When dividing negative powers of ten by other negative powers of 10 the calculator it just adds the the negative powers together. How do i fix this? An example: 5*10^-10 /...

To enter an exponent, positive or negative, use the EE (Enter Exponent) key (the shifted function of the , key just above the 7 key). Do 5 2ND [EE] (-) 1 0 / 5 2ND [EE] (-) 1 0 ENTER and you'll see 1.

What I think you're doing (I can't be sure without seeing your keystrokes) is calculating
5*10^-10/5*10^-10 which is interpreted as (5*10^-10/5)*10^-10, which indeed is 10^-20.

Oct 16, 2010 | Texas Instruments TI-84 Plus Silver...

### Try to multiply (20x10-9) (1x10-9)

If you use the exponent rules you do not need to use a
calculator for this particular case. Anyway to enter power of 10 exponents you use the [EE] key. See screen capture below.

20 [EE] (+ -)9 [X] 1[EE] (+ -) 9

Aug 12, 2010 | Texas Instruments TI-30XA Calculator

### Needing help with addint the power of into calculator

Use the key labeled times 10 to power X, the one between the decimal dot ant the Ans keys, in the middle of the bottom row of keys.
10 to the power 0 is entered as 1. [x10^X] 9 or simply [x10^X] 9
To enter negative exponents use the change sign key [(-)] just above the [RCL] key
10 to -9 is entered as [x10^X] [(-)] 9 result is shown as 1x10-9.

Jan 21, 2010 | Casio FX-115ES Scientific Calculator

### When I enter -5^2 I keep getting -25. Same for when I enter -5 and push the squared button. What is wrong?

Hello,
What you are calculating is -1 times 5^2 which is -1*25=-25.
If you want to calculate the square of -5 you enclose it between parentheses.

Reason

There are two operations: the power and the negation and the power has priority. Thus 5^2 is calculated first, then its negative is taken.
If you put it inside parentheses, the () has priority. The negative of 5 is taken first, then the result is squared giving 25.

(-5)^2=25.
Hope it helps.

Oct 21, 2009 | Texas Instruments TI-83 Plus Calculator

### How do enter a lim of function when from one side using nderiv

Hello,
nDeriv( is valid only for real variables.
The syntax is as follows:
nDeriv ( expression, variable, value, epsilon)

expression: the function the derivative of which you want to calculate
variable: the name of the variable in the expression above (usually x)
value: the numerical value of the e x where you evaluate the derivative
epsilon: the numerical value of the tolerance. Default is 1x10^(-3). But you can change it to a smaller value to obtain a more precise result.

To use default value of epsilon
nDeriv ( expression, variable, value)

To use a different epsilon, ex 1x10^(-4)
nDeriv ( expression, variable, value, 0.0001)

nDeriv( A^3 , A, 5., 0.0001) should give you 75

Hope it helps.

Oct 21, 2009 | Texas Instruments TI-84 Plus Calculator

### When I do 10^3 it gives me 10000 and when I do 10^-2 it gives me .1 what is wrong? Do I have to preset my calculator up correctly?

It should be 0.01 not 0.1 coz its the inverse.I f you rewrite it, it would be like this 1/10 to the power of 2. When the power is negative it would be dividing one.

hope I help

Jun 16, 2009 | Texas Instruments TI-30XA Calculator

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