Not every relation is a function. But every function is a relation. Function is just a part of relation.
The cubic function.
Range
A formula or graph are two ways to describe a math function. How a math function is described depends on the domain of the function or the complexity of the function.
The Mandelbrot graph is generated iteratively and so is a function of a function of a function ... and in that sense it is a composite function.
Calcaneus
The calcaneus.
The talus bone sits on the calcaneus.
The calcaneus is the "heel". It is one of the tarsal bones in the foot.
The calcaneus is the "heel". It is one of the tarsal bones in the foot.
In talipes calcaneus, the foot points upward, with the heel pointing down
The Achilles tendon structure joins the gastrocnemius to the calcaneus.
calcaneal
The largest tarsal bones in the body are the calcaneus, also known as the heel bone. It is located at the back of the foot and forms the heel. The calcaneus is an important bone for weight-bearing and plays a significant role in walking and running.
The soleus muscle inserts into the posterior calcaneus via the Achilles tendon.
The calcaneus is a tarsal bone located in the heel of the foot. It is the largest of the tarsal bones and helps support body weight when standing and walking. Its shape and structure allow for important functions such as shock absorption and propulsion during movement.
A thickening on the surface of the calcaneus bone is usually a heel spur.