🔒 Attempting to Make a Law of Cosines Calculator

[rich schooner]

This isn't really a code bug but a math functions inside python problem. I know my code isn't great and messy, but i'm not sure how to display the law of cosines math in python. As you see I try to do it but I am always roughly a few integers off the answer. If you needa reminder the law of cosines is a^2= b^2 + c^2 - 2bcCos(A)

[zinc kayak]

@rich schooner

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[rich schooner]

dont ask abou the mesiness of the code lol it's bad i know i js am confused about how to print the actual math the law of cosines does.

[dense blaze]

Dunno about the law, but why do you convert float to int?

[rich schooner]

dont ask about the messiness pls 😭

ik theres a crap ton of things i can improve

[dense blaze]

I was actually asking if there is a logical reasoning

[rich schooner]

nope im js tred

tired

brain no work

[onyx totem]

floats and ints are quite different kind of numbers, and you'll get different results

[dense blaze]

Well, you're off from your answer by a few, so maybe not convert to int

[rich schooner]

wont float just allow decimals or smth (sorry im new to python)

[rich schooner]

k

[onyx totem]

yes, and ints won't

so you get different results

[rich schooner]

ah

[dense blaze]

You're losing information when converting to int

[onyx totem]

>>> 3.5 * 2
7.0
>>> int(3.5) * 2
6

[dense blaze]

Ints get rid of the decimal part

[rich schooner]

ah

waht the

im geeking so hard

[rich schooner]

what is unresolved refernce?

im getting that on these @dense blaze

[dense blaze]

Could you show the entire code

[rich schooner]

sure

[dense blaze]

Interesting

[rich schooner]

idk why its ;like that

[dense blaze]

Can you try running it

[rich schooner]

oops

it was a simple )

alr ill test it rn

[dense blaze]

Ah

[rich schooner]

wtf'

now its off

by like a lot

@dense blaze

[dense blaze]

Alright

[rich schooner]

bruh

yeah its like

off off

[onyx totem]

you should try to print the intermediate values, to see where they go wrong

[dense blaze]

-2 is missing from your formula right?

[rich schooner]

yeah cause now i fixed smth and its off by .7 ish

[rich schooner]

fixed that

[dense blaze]

I can see you're using a variable called part 2

[rich schooner]

now its off around 0.1 -2 every time

[rich schooner]

yes

dont question the part

lmao

[dense blaze]

So its still off?

[rich schooner]

yes but by very little

so i think its rounding issue?

nvm

off by 50 lol

hewyvihoe

[onyx totem]

math.cos takes radians, maybe that?

[dense blaze]

Oh i see

[rich schooner]

ohh how would i make that degrees?

[onyx totem]

math.radians(160)

other way around, make 160 to radians

[dense blaze]

Yeah you should pass math.radians(160) to math.cos()

[onyx totem]

>>> 43**2 + 53**2 - (2*43*53*math.cos(math.radians(160)))
8941.11896554217
``` at least now the number matches

[dense blaze]

So you'd do math.cos(math.radians(160))

On line 16

Of course replace 160 with the actual variable name

[rich schooner]

ah

like this?

ignore degreestoradians ill remove that rn

[dense blaze]

Think so yeah

[onyx totem]

btw, your code isn't messy at all. You don't have to worry about that. 🙂

[rich schooner]

holy crap it works

[dense blaze]

Yeah its normal code

[rich schooner]

thanks im a beginner but i always try to optimize it when i can

like i rmemeber i didnt need to use a variable to square a number

[onyx totem]

there is very little you can do wrong in 15 lines, unless you're part of #esoteric-python 😉

[rich schooner]

ah

whats that

[zinc kayak]

Python help channel closed

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