I always wonder, but I do not know the answer, I think that if they put the little things instead of 0 / 360 • There is a reason.
perhaps the machine reads the little things better, or is another reason ?
I always wonder, but I do not know the answer, I think that if they put the little things instead of 0 / 360 • There is a reason.
perhaps the machine reads the little things better, or is another reason ?
So what is it you´re talking about?
Maybe if you replace “little things” with a proper word it might make more sense…
I do not know if this is your question or not.
In Python (and other computer languages), the sine, cosine, and tangent trigonometric functions do not use degrees as a measure. Instead, they use a weird unit called a radian. They use radians for reasons that make sense to a mathematician, but do not make sense to ordinary people like us.
To convert degrees into radians, you have to divide Pi by 180, to get something close to 0.0174532925
You then multiply the degrees by 0.0174532925, and the result is radians.
To convert radians to degrees, you divide radians by 0.0174532925 and the result is degrees.
yes, I asked just that …
I marked the numbers that you wrote
(it seems too easy) then I try:eek:
thanks
I have not checked the text of 'self-translation
the title was right
I think we have a languge barrier here. I’m sorry, you didn’t ask that question. In order to recieve help on these forums, be specific, and think about your question from another’s perspective. Will people understand what you mean by “I think that if they put the little things instead of 0 / 360 •”
In fact,
I try to write simple,
to be sure
that “translational” does not make jokes
the best way
is to write short sentences
as now,
if I write long sentences
tends to mix up the words
but “cosine” is a special case
Ok, you win. Everyone understands you perfectly. Go forth and prosper.
Well if you thing about it, dividing a circle into 360 pieces is pretty weird. It’s just that your used to this because you are taught it from an early age. Radians are connected to the geometry of a circle through circumference = 2piradius (except that instead of concentrating on pi we should have concentrated on 2*pi: http://tauday.com/, pi was a historical accident). The reason to use radians is just simplicity, trigonometry becomes simpler, otherwise you have to have conversion factors everywhere. This is why any package that uses trig in a serious way (like Blender) will use radians for angles.
Weird? Like 60 minutes in an hour etc the number is just arbitrary and was chosen because it is divisible by 2,3,4,5,6 etc. There was a system that had 400 divisions, still have a calculator with the Grad mode, but it seems to have disappeared… thankfully.
As for using a new symbol for 2pi… it’s a bit late now. Needed to be in someone’s ear when they were building the pyramids.
Please check the wikipedia for the definition of pi. It is a relation of circumfence and diameter.
Please check the wikipedia for the definition of radian. It is the relation between circumfence and radius (I think that’s why it is called radian not “diamedian” ).
If you do that you might recognize that that pi makes a lot of sense.
The usage of radian makes sense in the right context, because you can easily convert this ratio into a length (meter, km, inch, noodles).
While reading a clock (the one with the hands) you are not interested in the length, but in the direction. So it makes more sense for us to read degrees in the context of a clock.
None of the units is weird as long as you can transform between them. You need to know what units are meant.
Do the different units make your live easier? Sure, but it is a question of the context.
@MaroIT:
I agree with you, that writing short sentences is a good style.
But writing simple is not the same as writing vague.
Your title leads me to following question:
Reading the description created some more questions in my mind:
I can guess some answers (e.g. you mean 0 … 360° or degree). But I’m not sure if that matches what you wanted to express. So I agree with arexmas first post completely.
Anyway, the same suggestion as before:
Please check the wikipedia for the definition of cosine/Trigonometric functions.
You will see the English article is quite long with a lot of complex explanations.
There is a section “The significance of radians”. That might be interesting to you as well (I guess).
Does anything of this answers your question?
If not we would like to help.
Monster
easier: use:
from math import degrees, radians … and use where needed …