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.
Specialists Involved. Primary care doctors and internists often diagnose and treat Raynaud's. If you have the disorder, you also may see a rheumatologist. This is a doctor who specializes in treating disorders of the joints, bones, and muscles. Rheumatologists diagnose and treat many of the diseases that are linked to secondary Raynaud's, such as scleroderma and lupus.