Generally speaking, in mathematics, a projection is a mapping of a set (or of a mathematical structure) which is idempotent, which means that a projection is equal to its composition with itself. A projection may also refer to a mapping which has a left inverse.
A projection.
Manage
When rounded to the nearest hundredths, 100.147 is rounded to 100.15. When rounded to the nearest tenths, it is rounded to 100.1. When rounded to the nearest hundreds, it is rounded to 100.
If rounded to a whole number, it would be rounded to 8.
condyle
A rounded convex projection on a bone is called a tubercle. It is usually a small bump or nodule that serves as an attachment point for muscles or tendons.
The articular projection you are referring to is likely a condyle. Condyles are rounded prominences at the end of a bone that form a joint with another bone. They are supported by a neck, which is a narrowed region connecting the condyle to the rest of the bone.
A smooth rounded end of a bone is called an articular surface. It is covered with articular cartilage to allow for smooth movement at a joint.
tubercle
The spine is a projection of bones that form the vertebral column. It is not a depression.
A large concave or rounded articular prominence of a bone is called a condyle. Condyles generally serve as sites of attachment for muscles and ligaments, as well as forming joints with other bones.
malleus,ear bone
A sharp projection from the surface of a bone is called a process. Bones can have different types of processes, such as a spinous process, which is a sharp, pointed projection; or a tuberosity, which is a large, rounded projection. Processes serve as attachment points for ligaments and tendons.
A tuberacle is a small, rounded projection of a process formed where tendons or ligaments attach.
A rounded knob that articulates with another bone is called a condyle. These structures are found in joints where they help to facilitate smooth movement and stability during motion.
Articular Cartilage