What are the different symbols used for denoting an angle?
$begingroup$
This is not a question involving numbers and stuff, but suddenly had this basic question in mind: What are the different symbols that different people use for denoting an angle? (I mean, we usually use this $angle$ symbol for denoting an angle; some people use the one with a c-curve, something like that).
I suddenly had this question as I was going through bunch of question papers of different MO’s in different countries, and just realised that they use different symbols to denote an angle. This may seem to be a very simple and basic question, but I need it because I just know a bunch of symbols in math and knowing more symbols helps me in exams. Thanks in advance.
soft-question notation
edited Jan 16 at 16:12
gt6989b
34k22455
asked Jan 16 at 16:07
YellowYellow
16011
$endgroup$
add a comment |
$begingroup$
This is not a question involving numbers and stuff, but suddenly had this basic question in mind: What are the different symbols that different people use for denoting an angle? (I mean, we usually use this $angle$ symbol for denoting an angle; some people use the one with a c-curve, something like that).
I suddenly had this question as I was going through bunch of question papers of different MO’s in different countries, and just realised that they use different symbols to denote an angle. This may seem to be a very simple and basic question, but I need it because I just know a bunch of symbols in math and knowing more symbols helps me in exams. Thanks in advance.
soft-question notation
edited Jan 16 at 16:12
gt6989b
34k22455
asked Jan 16 at 16:07
YellowYellow
16011
$endgroup$
3
$begingroup$
Are you able to provide more specific examples of the symbols you mean? Really, the ones that I see most often on this site are $angle$, and $sphericalangle$ or $measuredangle$.
$endgroup$
– Decaf-Math
Jan 16 at 16:12
$begingroup$
Like C with a cap on it.
$endgroup$
– Yellow
Jan 16 at 16:17
$begingroup$
Yup, no doubt, the ones you have mentioned are the most prominent. But these (the C cap) symbols are also used occasionally. So this question came in my mind.
$endgroup$
– Yellow
Jan 16 at 16:19
$begingroup$
That’s the problem there,too. When you get accustomed to the usual symbols and suddenly someone introduces this new kind of symbols, especially in exams, they make things worse
$endgroup$
– Yellow
Jan 16 at 16:21
add a comment |
$begingroup$
This is not a question involving numbers and stuff, but suddenly had this basic question in mind: What are the different symbols that different people use for denoting an angle? (I mean, we usually use this $angle$ symbol for denoting an angle; some people use the one with a c-curve, something like that).
I suddenly had this question as I was going through bunch of question papers of different MO’s in different countries, and just realised that they use different symbols to denote an angle. This may seem to be a very simple and basic question, but I need it because I just know a bunch of symbols in math and knowing more symbols helps me in exams. Thanks in advance.
soft-question notation
edited Jan 16 at 16:12
gt6989b
34k22455
asked Jan 16 at 16:07
YellowYellow
16011
$endgroup$
This is not a question involving numbers and stuff, but suddenly had this basic question in mind: What are the different symbols that different people use for denoting an angle? (I mean, we usually use this $angle$ symbol for denoting an angle; some people use the one with a c-curve, something like that).
I suddenly had this question as I was going through bunch of question papers of different MO’s in different countries, and just realised that they use different symbols to denote an angle. This may seem to be a very simple and basic question, but I need it because I just know a bunch of symbols in math and knowing more symbols helps me in exams. Thanks in advance.
soft-question notation
soft-question notation
edited Jan 16 at 16:12
gt6989b
34k22455
asked Jan 16 at 16:07
YellowYellow
16011
edited Jan 16 at 16:12
gt6989b
34k22455
asked Jan 16 at 16:07
YellowYellow
16011
edited Jan 16 at 16:12
gt6989b
34k22455
edited Jan 16 at 16:12
gt6989b
34k22455
edited Jan 16 at 16:12
gt6989b
34k22455
34k22455
asked Jan 16 at 16:07
YellowYellow
16011
asked Jan 16 at 16:07
YellowYellow
16011
asked Jan 16 at 16:07
YellowYellow
16011
16011
3
$begingroup$
Are you able to provide more specific examples of the symbols you mean? Really, the ones that I see most often on this site are $angle$, and $sphericalangle$ or $measuredangle$.
$endgroup$
– Decaf-Math
Jan 16 at 16:12
$begingroup$
Like C with a cap on it.
$endgroup$
– Yellow
Jan 16 at 16:17
$begingroup$
Yup, no doubt, the ones you have mentioned are the most prominent. But these (the C cap) symbols are also used occasionally. So this question came in my mind.
$endgroup$
– Yellow
Jan 16 at 16:19
$begingroup$
That’s the problem there,too. When you get accustomed to the usual symbols and suddenly someone introduces this new kind of symbols, especially in exams, they make things worse
$endgroup$
– Yellow
Jan 16 at 16:21
add a comment |
3
$begingroup$
Are you able to provide more specific examples of the symbols you mean? Really, the ones that I see most often on this site are $angle$, and $sphericalangle$ or $measuredangle$.
$endgroup$
– Decaf-Math
Jan 16 at 16:12
$begingroup$
Like C with a cap on it.
$endgroup$
– Yellow
Jan 16 at 16:17
$begingroup$
Yup, no doubt, the ones you have mentioned are the most prominent. But these (the C cap) symbols are also used occasionally. So this question came in my mind.
$endgroup$
– Yellow
Jan 16 at 16:19
$begingroup$
That’s the problem there,too. When you get accustomed to the usual symbols and suddenly someone introduces this new kind of symbols, especially in exams, they make things worse
$endgroup$
– Yellow
Jan 16 at 16:21
3
3
$begingroup$
Are you able to provide more specific examples of the symbols you mean? Really, the ones that I see most often on this site are $angle$, and $sphericalangle$ or $measuredangle$.
$endgroup$
– Decaf-Math
Jan 16 at 16:12
$begingroup$
Are you able to provide more specific examples of the symbols you mean? Really, the ones that I see most often on this site are $angle$, and $sphericalangle$ or $measuredangle$.
$endgroup$
– Decaf-Math
Jan 16 at 16:12
$begingroup$
Like C with a cap on it.
$endgroup$
– Yellow
Jan 16 at 16:17
$begingroup$
Like C with a cap on it.
$endgroup$
– Yellow
Jan 16 at 16:17
$begingroup$
Yup, no doubt, the ones you have mentioned are the most prominent. But these (the C cap) symbols are also used occasionally. So this question came in my mind.
$endgroup$
– Yellow
Jan 16 at 16:19
$begingroup$
Yup, no doubt, the ones you have mentioned are the most prominent. But these (the C cap) symbols are also used occasionally. So this question came in my mind.
$endgroup$
– Yellow
Jan 16 at 16:19
$begingroup$
That’s the problem there,too. When you get accustomed to the usual symbols and suddenly someone introduces this new kind of symbols, especially in exams, they make things worse
$endgroup$
– Yellow
Jan 16 at 16:21
$begingroup$
That’s the problem there,too. When you get accustomed to the usual symbols and suddenly someone introduces this new kind of symbols, especially in exams, they make things worse
$endgroup$
– Yellow
Jan 16 at 16:21
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
$angle$ is usually used to denote a standard angle, whereas $measuredangle$ is used to denote a directed angle.
That is, given two non-parallel lines $ell$ and $m$, the directed angle $measuredangle(ell, m)$ denotes the measure of the angle starting from $ell$ and ending at $m$, measured counterclockwise.
edited Jan 16 at 17:30
bof
51.5k558120
answered Jan 16 at 17:25
Ekesh KumarEkesh Kumar
1,00228
$endgroup$
$begingroup$
do you mean these are the only symbols to denote an angle? I saw that $hat C$ also meant angle C..
$endgroup$
– Yellow
Jan 16 at 17:32
$begingroup$
Where did you see this?
$endgroup$
– Ekesh Kumar
Jan 16 at 17:33
$begingroup$
INMO 2013, more precisely..
$endgroup$
– Yellow
Jan 16 at 17:35
$begingroup$
Yes, they use $hat{C}$ to denote $angle C$ in Problem 5. It can be figured out from the context of the problem.
$endgroup$
– Ekesh Kumar
Jan 16 at 17:37
$begingroup$
Well, yeah, but is there any other symbol that people use? No, right?
$endgroup$
– Yellow
Jan 16 at 17:40
|
show 2 more comments
Your Answer
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1 Answer
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active
oldest
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1 Answer
1
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oldest
votes
active
oldest
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active
oldest
votes
$begingroup$
$angle$ is usually used to denote a standard angle, whereas $measuredangle$ is used to denote a directed angle.
That is, given two non-parallel lines $ell$ and $m$, the directed angle $measuredangle(ell, m)$ denotes the measure of the angle starting from $ell$ and ending at $m$, measured counterclockwise.
edited Jan 16 at 17:30
bof
51.5k558120
answered Jan 16 at 17:25
Ekesh KumarEkesh Kumar
1,00228
$endgroup$
$begingroup$
do you mean these are the only symbols to denote an angle? I saw that $hat C$ also meant angle C..
$endgroup$
– Yellow
Jan 16 at 17:32
$begingroup$
Where did you see this?
$endgroup$
– Ekesh Kumar
Jan 16 at 17:33
$begingroup$
INMO 2013, more precisely..
$endgroup$
– Yellow
Jan 16 at 17:35
$begingroup$
Yes, they use $hat{C}$ to denote $angle C$ in Problem 5. It can be figured out from the context of the problem.
$endgroup$
– Ekesh Kumar
Jan 16 at 17:37
$begingroup$
Well, yeah, but is there any other symbol that people use? No, right?
$endgroup$
– Yellow
Jan 16 at 17:40
|
show 2 more comments
$begingroup$
$angle$ is usually used to denote a standard angle, whereas $measuredangle$ is used to denote a directed angle.
That is, given two non-parallel lines $ell$ and $m$, the directed angle $measuredangle(ell, m)$ denotes the measure of the angle starting from $ell$ and ending at $m$, measured counterclockwise.
edited Jan 16 at 17:30
bof
51.5k558120
answered Jan 16 at 17:25
Ekesh KumarEkesh Kumar
1,00228
$endgroup$
$begingroup$
do you mean these are the only symbols to denote an angle? I saw that $hat C$ also meant angle C..
$endgroup$
– Yellow
Jan 16 at 17:32
$begingroup$
Where did you see this?
$endgroup$
– Ekesh Kumar
Jan 16 at 17:33
$begingroup$
INMO 2013, more precisely..
$endgroup$
– Yellow
Jan 16 at 17:35
$begingroup$
Yes, they use $hat{C}$ to denote $angle C$ in Problem 5. It can be figured out from the context of the problem.
$endgroup$
– Ekesh Kumar
Jan 16 at 17:37
$begingroup$
Well, yeah, but is there any other symbol that people use? No, right?
$endgroup$
– Yellow
Jan 16 at 17:40
|
show 2 more comments
$begingroup$
$angle$ is usually used to denote a standard angle, whereas $measuredangle$ is used to denote a directed angle.
That is, given two non-parallel lines $ell$ and $m$, the directed angle $measuredangle(ell, m)$ denotes the measure of the angle starting from $ell$ and ending at $m$, measured counterclockwise.
edited Jan 16 at 17:30
bof
51.5k558120
answered Jan 16 at 17:25
Ekesh KumarEkesh Kumar
1,00228
$endgroup$
$angle$ is usually used to denote a standard angle, whereas $measuredangle$ is used to denote a directed angle.
That is, given two non-parallel lines $ell$ and $m$, the directed angle $measuredangle(ell, m)$ denotes the measure of the angle starting from $ell$ and ending at $m$, measured counterclockwise.
edited Jan 16 at 17:30
bof
51.5k558120
answered Jan 16 at 17:25
Ekesh KumarEkesh Kumar
1,00228
edited Jan 16 at 17:30
bof
51.5k558120
edited Jan 16 at 17:30
bof
51.5k558120
edited Jan 16 at 17:30
bof
51.5k558120
51.5k558120
answered Jan 16 at 17:25
Ekesh KumarEkesh Kumar
1,00228
answered Jan 16 at 17:25
Ekesh KumarEkesh Kumar
1,00228
answered Jan 16 at 17:25
Ekesh KumarEkesh Kumar
1,00228
1,00228
$begingroup$
do you mean these are the only symbols to denote an angle? I saw that $hat C$ also meant angle C..
$endgroup$
– Yellow
Jan 16 at 17:32
$begingroup$
Where did you see this?
$endgroup$
– Ekesh Kumar
Jan 16 at 17:33
$begingroup$
INMO 2013, more precisely..
$endgroup$
– Yellow
Jan 16 at 17:35
$begingroup$
Yes, they use $hat{C}$ to denote $angle C$ in Problem 5. It can be figured out from the context of the problem.
$endgroup$
– Ekesh Kumar
Jan 16 at 17:37
$begingroup$
Well, yeah, but is there any other symbol that people use? No, right?
$endgroup$
– Yellow
Jan 16 at 17:40
|
show 2 more comments
$begingroup$
do you mean these are the only symbols to denote an angle? I saw that $hat C$ also meant angle C..
$endgroup$
– Yellow
Jan 16 at 17:32
$begingroup$
Where did you see this?
$endgroup$
– Ekesh Kumar
Jan 16 at 17:33
$begingroup$
INMO 2013, more precisely..
$endgroup$
– Yellow
Jan 16 at 17:35
$begingroup$
Yes, they use $hat{C}$ to denote $angle C$ in Problem 5. It can be figured out from the context of the problem.
$endgroup$
– Ekesh Kumar
Jan 16 at 17:37
$begingroup$
Well, yeah, but is there any other symbol that people use? No, right?
$endgroup$
– Yellow
Jan 16 at 17:40
$begingroup$
do you mean these are the only symbols to denote an angle? I saw that $hat C$ also meant angle C..
$endgroup$
– Yellow
Jan 16 at 17:32
$begingroup$
do you mean these are the only symbols to denote an angle? I saw that $hat C$ also meant angle C..
$endgroup$
– Yellow
Jan 16 at 17:32
$begingroup$
Where did you see this?
$endgroup$
– Ekesh Kumar
Jan 16 at 17:33
$begingroup$
Where did you see this?
$endgroup$
– Ekesh Kumar
Jan 16 at 17:33
$begingroup$
INMO 2013, more precisely..
$endgroup$
– Yellow
Jan 16 at 17:35
$begingroup$
INMO 2013, more precisely..
$endgroup$
– Yellow
Jan 16 at 17:35
$begingroup$
Yes, they use $hat{C}$ to denote $angle C$ in Problem 5. It can be figured out from the context of the problem.
$endgroup$
– Ekesh Kumar
Jan 16 at 17:37
$begingroup$
Yes, they use $hat{C}$ to denote $angle C$ in Problem 5. It can be figured out from the context of the problem.
$endgroup$
– Ekesh Kumar
Jan 16 at 17:37
$begingroup$
Well, yeah, but is there any other symbol that people use? No, right?
$endgroup$
– Yellow
Jan 16 at 17:40
$begingroup$
Well, yeah, but is there any other symbol that people use? No, right?
$endgroup$
– Yellow
Jan 16 at 17:40
|
show 2 more comments
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3
$begingroup$
Are you able to provide more specific examples of the symbols you mean? Really, the ones that I see most often on this site are $angle$, and $sphericalangle$ or $measuredangle$.
$endgroup$
– Decaf-Math
Jan 16 at 16:12
$begingroup$
Like C with a cap on it.
$endgroup$
– Yellow
Jan 16 at 16:17
$begingroup$
Yup, no doubt, the ones you have mentioned are the most prominent. But these (the C cap) symbols are also used occasionally. So this question came in my mind.
$endgroup$
– Yellow
Jan 16 at 16:19
$begingroup$
That’s the problem there,too. When you get accustomed to the usual symbols and suddenly someone introduces this new kind of symbols, especially in exams, they make things worse
$endgroup$
– Yellow
Jan 16 at 16:21