Being what was wanted or needed. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

each of set of values of parameter for which differential equation has non-zero solution eigenfunction under given conditions. Any number such that a given square matrix minus that number times the identity matrix has a zero determinant.

Focusing on the bad aspects; pessimistic. no. Image on camera film used to make a photo. refuse to accept.

A thing or issue that people do not agree about. alter coat of arms.

Equal to something in value, use or meaning. Thing like another in quality, quantity or degree.

Existing or happening before the present time.

for what reason. Cause/intention underlying an action or situation.

vector which when operated on by given operator gives scalar multiple of itself.

Collection of qualities that makes a person.

View (often beautiful) in the countryside. To make a clock state or ring at a particular time.

Number by which another number is multiplied. numerical or constant quantity placed before and multiplying variable in algebraic expression.

cause to occur in particular way.

analogous or equivalent. To have similarity or equality with something.

find answer to, explanation for, or means of effectively dealing with.

statement that two values are equal. Mathematical statements showing things to be equal.