The straight line

Econometrics (economic measure) can be defined as a social science in which economic and mathematical knowledge are co-present in the analysis of economic phenomena. Knowledge already taught in secondary mathematics education must be transformed into tools for modeling phenomena of economic in reality. In this paper, we are going to explain the difficulties of students when they have to mobilize the two objects of knowledge: The slope of the straight line and the logarithms.

10p vinhbinhnguyen 14-06-2017 33 1   Download

Obviously, (1.2) implies the same estimate for M(Z(QN, P)). It was suggested in [2] that in this case the (1+logN) term could be omitted at the cost of multiplying by a constant. The above suggestion means that in the passage from the sum of moduli to the modulus of the sum in (1.1) essential cancellation should take place. As a contribution towards this end the authors showed that any straight line L intersects Z(QN, P) in a set FP of linear measure less than 2eP−1N. Further information about the complement of FP under certain conditions on {zk} is obtained in [1].

21p noel_noel 17-01-2013 38 7   Download

In this chapter we will continue to study the motion of objects without the restriction we put in chapter 2 to move along a straight line. Instead we will consider motion in a plane (two dimensional motion) and motion in space (three dimensional motion)

16p kieucongviet 24-12-2009 126 16   Download

Directories. It should be a matter of course for sales-teams to screen hardcopy, CD-ROM or on-line directories for companies which fit the class of industry to which they sell. The source can vary from the maps and lists sold by Market Location, to Kompass, the Commercial Classified directories and the appropriate trade journals. A straight count of the companies within a region may be a guide to the potential for a product.

2p giundat 21-10-2009 98 11   Download

“Diffraction” of light can be understood as any deviation of light rays from their geometrical propagation line (that is straight in a homogeneuos material) An example (shown in the picture):The edge of shadow is never perfectly sharp. Some light appears in the geometrical shadow, and there are dark and light fringers in the area of illumination.

38p thanhan 22-07-2009 109 18   Download