Answer to Question #94024 in Quantitative Methods for Joshua

Question #94024
5.The technique of determining an approximate value of f(x) for a non-tabular value of x which lies in the internal [a, b] is referred to as
a.interpolation
b.extrapolation
c.exterpolation
d.intrapolation

6.If all the elements above the main diagonal of a square matrix vanish, the matrix is known as
a.side triangular
b.half triangular
c.lower triangular
d.upper triangular
1
Expert's answer
2019-09-11T09:39:08-0400

5. Answer: a.interpolation.

More info: https://en.wikipedia.org/wiki/Interpolation

It would be extrapolation, if we were seeking a value f(x) for x outside the "known" range where we have tabular values.

The other two terms are distorted words for interpolation and extrapolation.


6. Answer: c.lower triangular 

More info: https://en.wikipedia.org/wiki/Triangular_matrix


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