1.02-(0.0591)/2*(log[0.160]/[0.002])

please do explain each step in detail .

Look the calculators has a default base 10 and you can't change it but you may learn this:

log x base y = log x / log y

log (x*y) = log x + log y

log (x/y) = log x - log y

so instead input log 8 base 2 you need to input log 8 / log 2

your example answer is about 0.919... if i get right what did you write.

Glad to help :)

Posted on Jul 06, 2009

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Posted on Jan 02, 2017

To use the log function, use the log key. To use the antilog function, use the antilog key by hitting shift first, and then the log key.

For example, if we are trying to solve for n in the equation A=P(1+i)^n, where we have A, P and i, and want ot solve for n, we take the logs of both sides and we get log A = n log (1+i). To get n by itself, we divide both sides by log (1+i), we get n = log A /(log (1+i).

Good luck,

Paul

For example, if we are trying to solve for n in the equation A=P(1+i)^n, where we have A, P and i, and want ot solve for n, we take the logs of both sides and we get log A = n log (1+i). To get n by itself, we divide both sides by log (1+i), we get n = log A /(log (1+i).

Good luck,

Paul

Dec 06, 2015 | Casio Office Equipment & Supplies

hi

to explain what a logarithm is, it's to involved to explain here but check sosmath.com for a detailed explaination of it

i use it to find root and powers of numbers. it turn up in certain natural process like radioactive decay, population growth, interest calculations..etc

for square rooting a number

square root of 16

type 16 press the log ( I'm using a scientific calculator a TI 30s to be exact) key to get 1.204119983 for a result divide by 2 to get .602059991 press shift or 2nd log key ( to get the 10^ key - this the anti- log key) to get 4 as a result

I hope this helps

to explain what a logarithm is, it's to involved to explain here but check sosmath.com for a detailed explaination of it

i use it to find root and powers of numbers. it turn up in certain natural process like radioactive decay, population growth, interest calculations..etc

for square rooting a number

square root of 16

type 16 press the log ( I'm using a scientific calculator a TI 30s to be exact) key to get 1.204119983 for a result divide by 2 to get .602059991 press shift or 2nd log key ( to get the 10^ key - this the anti- log key) to get 4 as a result

I hope this helps

May 25, 2014 | Texas Instruments TI 30XIIS Scientific...

4726 seems to already be on base 10

it's 4*10^3 + 7*10^2 + 2*10^1 + 6*10^0

it's 4*10^3 + 7*10^2 + 2*10^1 + 6*10^0

Mar 17, 2011 | Casio FX-115ES Scientific Calculator

Assuming you want the common antilog of 11/20:

2nd 10^x 1 1 / 2 0 ENTER

10^x is on the LOG key, to the left of the 7 key.

2nd 10^x 1 1 / 2 0 ENTER

10^x is on the LOG key, to the left of the 7 key.

Nov 15, 2010 | Texas Instruments TI-83 Plus Calculator

Use the LOG key on the top row for common logs, the LN key for natural logs. In either case, simply enter the number as given then press the appropriate log key, then press =.

Oct 29, 2010 | Texas Instruments TI-30XA Calculator

What do you mean by solving for the pH?

Do you have the concentration? if YES, you CALCULATE the pH with the relation

pH=-log(c) where c is the value of concentration in mol/L.

ex: c= 3.57x10^(-6)

pH: (-) [LOG] 3.57 [2nd][EE] [(-)] 6 [ ) ]

Here you have 2 change sign key press [(-)]

If you have the pH, and want to calculate the concentration that yields that value of the pH you proceed as follows

c= 10^(-pH)

Ex pH=8.23

c: [2nd][LOG] [(-) 8.23 [)]

Here is a screen capture to show you both calculations

Do you have the concentration? if YES, you CALCULATE the pH with the relation

pH=-log(c) where c is the value of concentration in mol/L.

ex: c= 3.57x10^(-6)

pH: (-) [LOG] 3.57 [2nd][EE] [(-)] 6 [ ) ]

Here you have 2 change sign key press [(-)]

If you have the pH, and want to calculate the concentration that yields that value of the pH you proceed as follows

c= 10^(-pH)

Ex pH=8.23

c: [2nd][LOG] [(-) 8.23 [)]

Here is a screen capture to show you both calculations

Apr 25, 2010 | Texas Instruments TI-84 Plus Calculator

Hi,

It is easier to use the rules for logarithms to clean this equation before trying to solve it. And the calculator is no help here.

Let me represent the logs as follows log b in base a = log(a,b). The first argument is the base.

2*log(4,x) - log(4,3)= log(4,x)- log(4,2)

Here you have two similar terms 2*log(4,x) on the left and log(4,x) on the right. Gather them both on the same side, say the left. You have

**2*log(4,x) -log(4,x) +log(4,3) = log(4,x)-log(4,x) -log(4,2) **

which is equivalent to**log(4,x) +log(4,3) = -log(4,2)**

Gather the constant terms on the right, and use log(a) +log(b)=log(a*b)

log(4,x) = -log(4,2) -log(4,3) =**- { log(4,2)+log(4,3)}** = -log(4,2*3)

You get**log(4,x)= -log(4,6)**.

Take the constant term to the left, while changing its sign in the process. On the right remains 0, which is also the log of 1 in any base So log(4,x)+log(4,6) =0 =log(4,1)

Use the rule log(a) +log(b) = log(a*b) valid in any base, to obtain

log(4,6x)=log(4,1) which is equivalent to 6x=1. The solution is x=1/6

There are a few other shortcuts to get the solution but I preferred to take a pedestrian, step by step, approach.

Hope it helps.

It is easier to use the rules for logarithms to clean this equation before trying to solve it. And the calculator is no help here.

Let me represent the logs as follows log b in base a = log(a,b). The first argument is the base.

2*log(4,x) - log(4,3)= log(4,x)- log(4,2)

Here you have two similar terms 2*log(4,x) on the left and log(4,x) on the right. Gather them both on the same side, say the left. You have

which is equivalent to

Gather the constant terms on the right, and use log(a) +log(b)=log(a*b)

log(4,x) = -log(4,2) -log(4,3) =

You get

Take the constant term to the left, while changing its sign in the process. On the right remains 0, which is also the log of 1 in any base So log(4,x)+log(4,6) =0 =log(4,1)

Use the rule log(a) +log(b) = log(a*b) valid in any base, to obtain

log(4,6x)=log(4,1) which is equivalent to 6x=1. The solution is x=1/6

There are a few other shortcuts to get the solution but I preferred to take a pedestrian, step by step, approach.

Hope it helps.

Nov 25, 2009 | Casio FX-300MS Calculator

press shift log and then u can use antilog and give the numeric for which u have to find antilog then press = thats all
if u are satisfied with the answer pls rate the session

Jun 20, 2009 | Casio FX-300MS Calculator

to do logarithms with other bases, use change-of-base.
let's say you want to do log base 5 of 25. for clarity i'll write this as log(5) 25.
you would have to do log(10) 25 / log(10) 5 to get 2.
key sequence:
[LOG], 2, 5, ), / (divide), [LOG], 5, )

Apr 03, 2009 | Texas Instruments TI-83 Plus Calculator

Jan 17, 2014 | HP 33s Calculator

Dec 17, 2012 | HP 33s Calculator

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