Definition LT. Linear Transformation. A linear transformation, T : U â V , is a function that carries elements of the vector space U (called the domain) to the vector space V (called the codomain), and which has two additional properties.
Raynaud's sometimes is called a disease, syndrome, or phenomenon. The disorder is marked by brief episodes of vasospasm (VA-so-spazm), which is a narrowing of the blood vessels. Vasospasm of the arteries reduces blood flow to the fingers and toes. In people who have Raynaud's, the disorder usually affects the fingers.
There are two main types of the condition. 1  Primary Raynaud's. 2  Also called Raynaud's disease, this most common form isn't the result of an underlying associated medical condition that could provoke vasospasm. 3  Secondary Raynaud's.