Ivaalo (Posts tagged math)

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See, that’s what the app is perfect for.

Sounds perfect Wahhhh, I don’t wanna
solidagotea
abalidoth

Fun little math trick I find really helpful: the ratio of a mile to a kilometer is within 1% of the Golden Ratio. That means that if you have a good memory for Fibonacci numbers (1 2 3 5 8 13 21 34 55 89) you can convert pretty accurately by taking consecutive Fibonacci numbers.

For example, 89 kilometers is really close to 55 miles (55.3). Or, say you need to convert 26 miles to kilometers: 26 can be written as 21 plus 5, so taking the next Fibonacci number up gives 34 and 8, meaning it should be around 42 kilometers. Sure enough, it's 41.8 km!

tamberoo

image

i need several moments, math like this scares me

abalidoth

Not gonna lie, as much as I want to be helpful and comprehensible, I am very proud of provoking that reaction image.

perhapsihavesucceeded

I took a jaunt around europe and used this trick constantly

ivaalo

If you’re a furry:

1 km = 0.621 mile

math
viralfrog
viralfrog

image
ivaalo

This 3-year-old baby is approximately 2.14 pounds (0,91 kg).

The baby’s weight was taken after 3 months (one season) and if it was exponential, it would have been 7.5 trillion pounds after 10 years (40 seasons). Since one season already passed, we only have 39 seasons left.

Since I’m not mathematician and I don’t know how to work with 39 dimensions on my calculator, I estimated the result by trying and retrying.

2.14 ^39 ~= 7,693,733,884,976 pounds (3 489 818 987 035 kg)

Also it was 1.07 pounds (0,45 kg) at birth.

why did i do this math funny