The nationality of the mathematician Joseph Louis Laguange is _________

(a)

German

(b)

Spain

(c)

Italian

(d)

French

The knowledge of ______ is essential for the study of Numerical Analysis

(a)

Differences

(b)

finite differences

(c)

interpolation

(d)

extrapolation

The forward difference operator Δ is ______________

(a)

Nepla

(b)

Alpha

(c)

Gamma

(d)

Delta

The backward difference operator ∇ is ______________

(a)

Nepla

(b)

Alpha

(c)

Gamma

(d)

Delta

Δ is ____________

(a)

Commutative

(b)

distributive

(c)

closure

(d)

associative