Playing With Numbers Again

A=P x [e rt]
A=P x [{1+(r/n}exponent n x t]
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A=P x [1+{(r/n)exponent n x t}]

P=$100.00
n=compounded Annually
t=1 year
r=30%=.03

1st year
A=$100.00 x [{1 + (.03/1)} exponent 1 x 1]
A=$103.00

2nd year
A=$103.00 x [{1 + (.03/1)} exponent 1 x 1]
A=$106.09

3rd year
A=$106.09 x [{1 + (.03/1)} exponent 1 x 1]
A=$109.27

4th year
A=$109.27 x [{1 + (.03/1)} exponent 1 x 1]
A=$112.55

5th year
A=$112.55 x [{1 + (.03/1)} exponent 1 x 1]
A=$115.93
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Change t=1 year to t=5 yrs

A=$100 x [{1 + (.03/1)} exponent 1 x 5]
A=$115.93
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A=P x [e rt]
A=$100 x [e exponent {.03 x 5}]
A= $116.18

Thinking About My Kitty

I went to the Bank today and to put money away for my kitty, asked the gentleman who works in the bank if I could put fifty dollas, and if he could compute how much it will earn in 5 years.

"Well, I am sorry but other department handles the computing..." said the gentleman.

I politely showed him my calculations and here it is...

MONEY = $50
TIME = 5 YEARS (putting my kitty money away-to the bank- for five years)
INTEREST = 3% (yes so low, ridiculous!)

Here is the formula: A=P x [e rt] actually e with an exponent rt (which is called continues compounding)

Translation:
A is the amount of money earned in 5 years
P is the money I am going to put in
e=2.18281828...with exponent r, which is the interest rate being multiplied by time
*Time could be days, months, or years...

Here is the computation:

$50.00 times [e exponent .03 x 5 years]=58.09

If my kitty will have a baby and I would like to put money ($100.00) away for 21 years...with the same rate, which is 3%=.03....

$100.00 x [e exponent.03 x 21]=$187.76

Let me try the other formula....A=P x [1+(r/n)]exponent n x t]
...I don't think the bank uses this anymore...

Money earned (compounded annually)
$100.00 x [1 + {(.03/1)exponent 21 x 1}]=$186.03....

Oh, look at the time....I better get some sleep...to be continued....

Old Friends

"Never stop reaching of what seems unobtainable..."

Blank, totally blank...nothing left inside my mind after the end of the day. It is like there up there...in the dark space. My mind lost in the vastness of emptyness.

Oh, here it is, my old book. "Hitchicker Guide to Galaxy" by Douglas Adam...how about meeting me at the restaurant at the end of the universe. And I will explain to you about life, the universe and everything...and we will both say "So long and thanks for all the fish..."...for fun.

...and here another book..."The Dancing Lu Master..." It is quite old reading...It is getting late...I need my sleep...