What do you guys think 0 x 0 is, I think it is zero, what do you think?
- 0
- infinity
0 voters
It is either one, even though it is listed as “undefined”
cough numbers (AKA: 098765432123 )
WORD PROBLEM:
there are 15 birds standing on a wall, one of them gets killed by a cat. how many are left?
answer:none if the birds see the 1 bird getting clawed they will fly away
1 Like
well 0 x 0 isnt an equation because 0 is well… 0.
1 Like
It is listed as undefined.
1 Like
Tru though…
200000000
I hope this answer isn’t too late… not certain what the time-limit is here for “necroposting”, but since you are a “Regular” and the thread is still active, I’ll risk it.
Your question: “What’s calculus, and in particular, differential calculus?”
Differential Calculus is a discipline (type) of math that measures rates of change. Aside from use in computer and data science, it is super helpful in physics, and in “real world” problems where changes are gradual (analog) rather than stepwise (discrete).
To understand that word jumble, let’s look at an example, flowing water in your faucet. When you go to turn on the faucet (imagine doing it slooowly), the water flow starts at zero (no water) and gradually increases in the amount of water that comes out each moment until you stop turning the faucet.
Calculus can say how much faster or slower the flow rate is moment to moment on a continuum, no matter how big/small a unit of time you want to look at. It goes through every (infinite) point on the way from one number to the next - aka “analog”. You can also approximate this answer by measuring it (or estimating) every second/hour, which would be “discrete”, because it is only providing data for a chunk of time. Sometimes the calculus equation is so messy that an approximation is a better tool, and that can sometimes be used in the same discipline.
*** Incidentally, many calculus problems use infinity. Either the solution is what number or condition is approached as time stretches into infinity, or the solution becomes “infinity” as one condition changes into another.
3 Likes
isnt that just speed or smthing?
Close. It’s “acceleration” in this case. The change in speed.
1 Like
idk al this
im only in trig n stats
i think next year is pre and year after is calc
That’s ok. I’m sure it will become clearer then. And unless you are an engineer, scientist, academic or mathematician, you will probably be alright without it for most of your daily life. It’s good to know, but most jobs and “adulting” activities don’t rely on it.
Pay close attention in statistics though. Those are used all the time, and knowing how to understand what they really mean will help you:
- cut through the spin/marketing/politics of whatever the numbers are describing
and - make better assessments of risk of all kinds … even including “games of chance”
what grade are u in
u know a lot
About grade 1000. I finished “school” a while back. 
But I like to keep learning. I know CodeCombat is mostly written for young learners, but the truth is that having fun while learning is also good for grownups. Just like you, we understand and remember things better when it is interesting and engaging, and when we get to practice as we go. (It’s just that many adults seem to believe we aren’t allowed to play anymore - so we get boring. Well, that and the fact that some adult topics don’t have a lot of fun learning options - look up “actuarial” if you want to see an example.)
see this is why i dont like math. bunch of big brain words
1 Like
bro u mind me asking a question
ive already asked my teachers and they all tell me to wait and ill find out when im an adult
do u ever use chemistry molecules atoms protons nutrons charge ions
or finding the angle of shapes and proofs and finding vertexes and stuff like that
cuz honestly i think its all useless but thats just me
(yes im kinda lazy to learn and do homework not to mention a huge procrastinator)
1 Like
Welll maybe if you’re a scientist.
i mean for like normal people
like people with jobs like computers or like architerechtures or like sports etc
For that you would need to know angles.
Like you said vertexes right angles etc.
1 Like
Math is really like another language plus extra logic, so yeah, it can be intimidating.
To put it more simply: Calculus is a way to measure how fast/slow things change in a very careful way. It is important in certain careers in math and (some types of) science, but most people don’t need to use it every day.
But if you can handle the coding problems in the game, I bet you can learn calculus (or other types of math).
Just take it step by step, keep trying till you “get it”, and tell yourself that you are smart enough - you just have to practice. Lots of people tell themselves they are “bad at math”, even when they aren’t really, and it can make progress harder. If something just doesn’t make sense, take a break and then come back to it. If it still doesn’t make sense, ask around for another way to look at the problem. Usually, a different type of explanation makes a big difference.
3 Likes
bruh dont say that
I dont want to be proven wrong 
1 Like