Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Azimuth shopping experience:
1. Compare - without doubt the biggest advantage that the Azimuth offers shoppers today is the ability to compare thousands of Azimuth at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.
2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about
3. Testimonials - don't know anybody that has bought a Azimuth? Wrong! If the Azimuth is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.
4. Questions - Got a question about Azimuth then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....
5. Reputation - Never heard of the company selling Azimuth? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Azimuth and build up a picture of their reputation for sales, returns, customer service, delivery etc.
6. Returns - still worried that even after all of the above your Azimuth wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.
7. Feedback - happy with your Azimuth then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.
8. Security - check for the yellow padlock on the Azimuth site before you buy, and the s after http:/ /i.e. https:// = a secure site
9. Contact - got a question about Azimuth, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.
10. Payment - ready to pay for your Azimuth, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.
Azimuth is a mathematical concept defined as the angle, usually measured in
degree (angle) (°), between a plane (mathematics) and a point (geometry). This concept is used in many practical applications including navigation, astronomy, mapping, mining and artillery. The word
azimuth is derived from the Arabic السمت
('as-sumūt') which means
the ways, referring to the ways or directions a person faces.
Navigation
In navigation, the reference plane is typically true north and is considered 0° azimuth. Moving clockwise and counterclockwise, a point due east would have an azimuth of 90°, south 180°, and west 270°. Some navigation systems use south as the reference plane. However, any direction can serve as the plane of reference, as long as it is clearly defined for everyone using that system.
True north-based azimuths
{| class="wikitable" style="margin:auto;"|-----! colspan="2" | From North|-----| North || align="center" | 0° or 360°|-----| North North East || align="center" | 22.5°|-----| North East || align="center" | 45°|-----| East North East || align="center" | 67.5°|-----| East || align="center" | 90°|-----| East South East || align="center" | 112.5°|-----| South East || align="center" | 135°|-----| South South East || align="center" | 157.5°|-----| South || align="center" | 180°|-----| South South West || align="center" | 202.5°|-----| South West || align="center" | 225°|-----| West South West || align="center" | 247.5°|-----| West || align="center" | 270°|-----| West North West || align="center" | 292.5°|-----| North West || align="center" | 315°|-----| North North West || align="center" | 337.5°|}
Mapping
There are a wide variety of Map projection#Azimuthal .28projections onto a plane.29s. They all have the property that directions (the azimuths) from a central point are preserved. Some navigation systems use south as the reference plane like in the Philippine practice. However, any direction can serve as the plane of reference, as long as it is clearly defined for everyone using that system.
Astronomy
Azimuth is often — some consider incorrectly — referred to as a bearing (navigation). However, in modern
astronomy azimuth is nearly always measured from the north. In former times, it was common to refer to azimuth from the south, as it was then zero at the same time the hour angle of a
star was zero. This assumes, however, that the star culmination in the south, which is only true for most stars in the
Northern Hemisphere.
Other uses
In
aviation, azimuth is used to determine headings or the direction in which to fly. In artillery, it is the direction of fire.
Azimuth is also terms used in
mining for a similar, but slightly different angle:
azimuths and
meridian angles are used to name any angle measured clockwise from any meridian.
For
tape drives, azimuth refers to the angle between the tape head(s) and the tape medium.
Other systems
Declination
If instead of measuring from and along the horizon the angles are measured from and along the celestial equator, the angles are called declination and right ascension (hour angle).
Horizontal coordinate
In the horizontal coordinate system, used in celestial navigation and
satellite dish installation, azimuth is one of the two
coordinate system. The other is Altitude (astronomy), sometimes called elevation above the horizon. See also: Sat finder.
Polar coordinate
In three-dimensional Coordinates (mathematics)#Polar coordinates, including
cylindrical coordinate system and
spherical coordinate system, the azimuth of a point is the
angle between the positive x-axis and the projection of the vector (spatial) from the origin to the point onto the xy-plane (mathematics) (the component of the vector in the xy-plane). In cylindrical coordinate,
theta \theta is almost universally used to represent the azimuth. Although there are several conventions in spherical coordinates, the azimuth is usually denoted by either theta, \theta or
phi (letter), \phi.
See also
Azimuth is a mathematical concept defined as the angle, usually measured in
degree (angle) (°), between a plane (mathematics) and a point (geometry). This concept is used in many practical applications including navigation, astronomy, mapping, mining and artillery. The word
azimuth is derived from the Arabic السمت
('as-sumūt') which means
the ways, referring to the ways or directions a person faces.
Navigation
In navigation, the reference plane is typically
true north and is considered 0° azimuth. Moving
clockwise and counterclockwise, a point due east would have an azimuth of 90°, south 180°, and west 270°. Some navigation systems use south as the reference plane. However, any direction can serve as the plane of reference, as long as it is clearly defined for everyone using that system.
True north-based azimuths
{| class="wikitable" style="margin:auto;"|-----! colspan="2" | From North|-----| North || align="center" | 0° or 360°|-----| North North East || align="center" | 22.5°|-----| North East || align="center" | 45°|-----| East North East || align="center" | 67.5°|-----| East || align="center" | 90°|-----| East South East || align="center" | 112.5°|-----| South East || align="center" | 135°|-----| South South East || align="center" | 157.5°|-----| South || align="center" | 180°|-----| South South West || align="center" | 202.5°|-----| South West || align="center" | 225°|-----| West South West || align="center" | 247.5°|-----| West || align="center" | 270°|-----| West North West || align="center" | 292.5°|-----| North West || align="center" | 315°|-----| North North West || align="center" | 337.5°|}
Mapping
There are a wide variety of
Map projection#Azimuthal .28projections onto a plane.29s. They all have the property that directions (the azimuths) from a central point are preserved. Some navigation systems use south as the reference plane like in the Philippine practice. However, any direction can serve as the plane of reference, as long as it is clearly defined for everyone using that system.
Astronomy
Azimuth is often — some consider incorrectly — referred to as a
bearing (navigation). However, in modern astronomy azimuth is nearly always measured from the north. In former times, it was common to refer to azimuth from the south, as it was then zero at the same time the hour angle of a
star was zero. This assumes, however, that the star
culmination in the south, which is only true for most stars in the Northern Hemisphere.
Other uses
In aviation, azimuth is used to determine headings or the direction in which to fly. In artillery, it is the direction of fire.
Azimuth is also terms used in mining for a similar, but slightly different angle:
azimuths and
meridian angles are used to name any angle measured clockwise from any meridian.
For
tape drives, azimuth refers to the angle between the tape head(s) and the tape medium.
Other systems
Declination
If instead of measuring from and along the horizon the angles are measured from and along the celestial equator, the angles are called declination and right ascension (hour angle).
Horizontal coordinate
In the horizontal coordinate system, used in celestial navigation and satellite dish installation, azimuth is one of the two coordinate system. The other is
Altitude (astronomy), sometimes called elevation above the horizon. See also:
Sat finder.
Polar coordinate
In three-dimensional Coordinates (mathematics)#Polar coordinates, including
cylindrical coordinate system and
spherical coordinate system, the azimuth of a point is the
angle between the positive x-axis and the projection of the vector (spatial) from the origin to the point onto the xy-plane (mathematics) (the component of the vector in the xy-plane). In cylindrical coordinate,
theta \theta is almost universally used to represent the azimuth. Although there are several conventions in spherical coordinates, the azimuth is usually denoted by either theta, \theta or phi (letter), \phi.
See also
Azimuth - Wikipedia, the free encyclopedia
Azimuth (ˈæzɪməθ (help · info)) is a mathematical concept defined as the angle, usually measured in degrees (°), between a reference plane and a point.
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