NEW BEST CALCULATOR ON REPL.IT
NEW BEST CALCULATOR ON REPL.IT title may or may not be stolen from @henryeth
From thought to idea to working code, I present to you a great calculator. I have been coding in the dark for many days now, to shine it upon the light!
So, you ask why it's the best calculator on Repl?
Let's compare 2 calculators including mine (thanks to a friend for making it):
Here's a more complete (and slightly less biased lol) version with 3 being compared:
| Has: | Mine | Heneryeth's | FlaminHotValdez's |
|---|---|---|---|
| Addition | yes | yes | yes |
| Subtraction | yes | yes | yes |
Multiplication /w * | yes | yes | yes |
Multiplication /w x | yes | no | no |
| Division | yes | yes | yes |
| Exponents | yes | yes | yes |
** for exponents too | yes | no | no |
| Modulus | yes | yes | no |
| Unary operators | yes | yes (but no use) | no |
| Negative numbers | yes | no | no |
| Multiplication by parenthesis | yes | no | no |
| Factorials | yes | yes | no |
| Scientific notation | yes | no | no |
Square roots ((2^2)s returns sqrt of 2^2) | yes | no | no |
| Use calculator more than 1 time per run | yes | yes | no |
| Built in generally fast language | yes | no | yes |
| Lots of colors! | yes | no | no |
| Algebra | no | no | no |
| Fast startup times | yes | yes | no |
| Greater than or equal to | yes | no | no |
| Less than or equal to | yes | no | no |
| Less than | yes | no | no |
| Greater than | yes | no | no |
| Equal to | yes | no | no |
| No floating point inaccuracies | yes (as I'm aware of) | no | yes |
| Decimals | yes | yes | yes |
Exclude the 0 in floats without occasional side effects (like 1+.9 instead of 1+0.9 | yes | no | no |
| Error handling | yes | no | no |
Yes, you just saw error handling in my calculator's features maybe solely because I don't want people abusing this calculator
I have everything the two other calculators have (as I currently know) and more!
Here are some great pics showing off the calculator's capabilities!
Notes:
- Inspired to do this after @henryeth made a calculator (to expand knowledge)
- Made by converting the expression/equation to Reverse Polish Notation with the Shunting yard algorithm, which is then easily solved
- Any inaccuracies in this post that should be corrected please tell me
- I made a goal to not use any external dependencies other than those rust has itself, which meant lots of code.
- Please don't look at the code
it's ugly don't blame me for writing
432 lines of bad code distributed among 13 files I already know :( No hate/spam/unconstructive criticism plez
Fine I concede defeat >:(
@FlaminHotValdez
HURRAH!
HURRAH!
THE KING'S SUCCESSOR FINALLY REIGNS SUPREME!
@Kudos rip... But can we just take a moment to appreciate the fact that you commented on AJK4's post about how his code is literally just spam if statements and an eval() function. He denied it, I argued with him, and guess what he does? He goes and deletes the post. Srsly.
@FlaminHotValdez @AJK4 Hehe, I know him personally, nothing new.
@Kudos ah ok
@Kudos tell him that his work is just spam if statements
Oof xd @FlaminHotValdez
I admit it, this is godly:
NOICE
It looks AMAZING! I'm usually good at errors and bugs and I couldn't find any, great job!
I'm aware that this is an old post but...My post does not have floating point inaccuracies, and well...the slow startup time? BLAME REPLIT
EDIT: Mine also has decimals...-_-
@FlaminHotValdez
Maybe you could change the run command to execute the binary instead of compiling it every single time (what I did).
Your post does not have floating point inaccuracies, and has decimals.
But there aren't any floating point inaccuracies because the number is truncated to the first 10 digits.
@Kudos I truncate it to 10 digits because nobody really cares after that lol...we are a coding community, not NASA trying to calculate the value of pi to the millionth decimal point.
@FlaminHotValdez
🤣 true
no PEMDAS
should equal 9.8 if you are using PEMDAS, (parenthesis, exponents, multiplication, division, addition, subtraction.)
@BenCavanaugh
I acknowledge that's the wrong answer, but how in the world does that expression equal 9.8? Google says it is 10.
@Kudos google does the division first when they should put multiplication first.
5 + 5 - 5 % 5 * 5
5 + 5 - 5 % 25
5 % 25 = 0.2
5 + 5 - 0.2
10 - 0.2 = 9.8
I thought 5 modulo 25 is 5???
It looks like you're doing division where there's a modulo operator...
@BenCavanaugh % means modulus or remainder, not divide.
I thought that this would be parsed as (2 ^ (3 ^ 4)), therefore it would be (2 ^ 81) and then (2417851639229258349412352)?
Otherwise, nice!
Now allow me to to type in:
;)
@xxpertHacker
Ah, just saw this. I'll might loop over the equation in reverse and solve the exponents backwards as a result, or do a look ahead to see if there is an exponent sign immediately following another exponent sign.
@Kudos Well, first, what do others think?
Is that a good order to go in?
I just made a small change to the algorithm, exponents now solve correctly. Didn't have to do anything excessive.
@Kudos Cool, good to hear that it wasn't hard either.
Really nice calculator!
@JBloves27
Thanks :)
I think I have caught this in the middle of testing...
Huh?
@TalinSharma
It's called scientific notation and it's used for really big numbers. I just noted that the scientific notation my calculator uses differs from what google uses
Actually ever mind... I meant to enter 2*100^1000 so I got the wrong output.. nvm
YYYEEESSS I FOUND SMTH MINE DOES AND URS DOESN'T. Mine ignores illegal characters and urs raises errors for them I mean c'mon...
Well played. Thank you especially for pinging me twice in the description and mentioning me on my calculator and mispelling my name once in the description. I will get this title back do not worry hehe. Maybe in Python though, the "slow" programming language.
fml I make a post titled "Actual good calculator" and now there are like 2 more best calculator on replit wannabes. :'(
@FlaminHotValdez wannabes?
@FlaminHotValdez
I just googled that acronym and I didn't get a pretty result..
@Kudos Sowwy
Our dear community hates calculators and will spam hate comments here. Like fr just read my comment section :'(
@FlaminHotValdez Begging doesn't work eh
this is the reason why replit needs to have CARGO and not RUSTC
smh
@Coder100
Heh. I could have used cargo by running
cargo initin the terminal and changed the run command tocargo runbut I'm a masochist by nature ;)