> Calculating interest rate

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WithoutFroth
#1 2019-04-15 13:54:02

Calculating interest rate

Post 1

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WithoutFroth
#2 2019-04-15 13:54:22

Re: Calculating interest rate

360,086,440,642,531,605

Post 2

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WithoutFroth
#3 2019-04-15 14:01:13

Re: Calculating interest rate

Post 1: 360,086,440,642,531,605
Post 2: 360,094,775,976,806,736

Time 1: 13:54:02
Time 2: 13:54:22

20 second differential: 1.0000231481481509206045520936632

P(0)*e^(rt)=P(1)
1*e^(r 20/86400)=1.0000231481481509206045520936632

ln(e^(r * 20/86400)=ln(1.0000231481481509206045520936632)=0.00002314788
r*20/86400=0.00002314788
r=0.0999988416 or 10% per day.

I think I did that right.

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Sockpuppet
#4 2019-04-15 14:34:11

Re: Calculating interest rate

WithoutFroth wrote:

Post 1: 360,086,440,642,531,605
Post 2: 360,094,775,976,806,736

Time 1: 13:54:02
Time 2: 13:54:22

20 second differential: 1.0000231481481509206045520936632

P(0)*e^(rt)=P(1)
1*e^(r 20/86400)=1.0000231481481509206045520936632

ln(e^(r * 20/86400)=ln(1.0000231481481509206045520936632)=0.00002314788
r*20/86400=0.00002314788
r=0.0999988416 or 10% per day.

I think I did that right.

Never spent the time to calculate it,  but I figured it was 10% because your money doubles about once a week. And there is a well known rule of thumb that says a 10% annual rate of return will double your money in about 7 years.

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WithoutFroth
#5 2019-04-15 14:37:02

Re: Calculating interest rate

Sockpuppet wrote:

Never spent the time to calculate it,  but I figured it was 10% because your money doubles about once a week. And there is a well known rule of thumb that says a 10% annual rate of return will double your money in about 7 years.

Honestly, I doubt you are capable of calculating it given the trouble you've shown with math on this board before.

The rule of 70 is a good one to know though.  You probably want to update it to rule of 72 though.

https://www.investopedia.com/ask/answer … e-rule-72/

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Tashfiend Garlique
#6 2019-04-15 15:18:39

Re: Calculating interest rate

Sockpuppet wrote:

Never spent the time to calculate it,  but I figured it was 10% because your money doubles about once a week. And there is a well known rule of thumb that says a 10% annual rate of return will double your money in about 7 years.

I HAVE TAUGHT YOU WELL!
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Spanky
#7 2019-04-15 15:30:21

Re: Calculating interest rate

WithoutFroth wrote:

Honestly, I doubt you are capable of calculating it given the trouble you've shown with math on this board before.

The rule of 70 is a good one to know though.  You probably want to update it to rule of 72 though.

https://www.investopedia.com/ask/answer … e-rule-72/



I wrote banking software for 10 years. And did all of the math.

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Tashfiend Garlique
#8 2019-04-15 15:31:19

Re: Calculating interest rate

Spanky wrote:



I wrote banking software for 10 years. And did all of the math.

And you were sued for it consequently. Your so called "software" was never deployed because it was completely useless.

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WithoutFroth
#9 2019-04-15 15:40:47

Re: Calculating interest rate

Spanky wrote:



I wrote banking software for 10 years. And did all of the math.

Yeah, you did continuous time math rather than discrete time math?

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Tashfiend Garlique
#10 2019-04-15 15:41:59

Re: Calculating interest rate

GED in NPV?

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Spanky
#11 2019-04-15 17:26:28

Re: Calculating interest rate

WithoutFroth wrote:

Yeah, you did continuous time math rather than discrete time math?

I am not claiming to be a mathematician, but I took math into my first year of college, and have gone on to do my own self-study beyond that. None of the math you have posted has been particularly difficult. That said, I acknowledge that you have a more natural understanding of math than I do. I have to think about things a little more. And I can tell you feel very comfortable explaining things with math, which suggests an understanding more advanced than mine.

That said I have been employed in three jobs where my math skills were a primary component of my job. In fact, my math skills are mentioned as a reason for hiring me in the eSpeedient lawsuit. That information is in the public record. You can look it up.

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Tashfiend Garlique
#12 2019-04-15 17:40:55

Re: Calculating interest rate

Spanky wrote:

I am not claiming to be a mathematician, but I took math into my first year of college, and have gone on to do my own self-study beyond that. None of the math you have posted has been particularly difficult. That said, I acknowledge that you have a more natural understanding of math than I do. I have to think about things a little more.
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Thank you for finally admitting your a low IQ individual.

What was your SAT score?

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