Graphical method for interpolation, Mathematics

Graphical Method

While drawing the graph on a natural scale, the independent variables are marked along the horizontal line and corresponding dependent variables are taken as ordinates. The points so plotted are joined by a smooth curve. For interpolation, the value of the independent variable is marked at the proper place on the X-axis and a line perpendicular to the X-axis is drawn from the point so marked to intersect the curve. Again by drawing a line perpendicular to the Y-axis from the point of intersection on the curve to meet the Y-axis, the value of the dependent variable is ascertained by reading off the value at the point of intersection with the Y-axis. The illustration given below demonstrates the use of this method.

Example 

The population of a town is as follows:

Figure 

1061_graphical method.png

Year

1941

1951

1961

1971

1981

1991

Population (in 000's)

24

30

40

54

78

104

Find the population for the years 1976 and 1978.

Marking points on the X-axis, for the years 1976 and 1978, and dropping perpendiculars, the population for the years can be interpolated as 65,000 and 70,000 respectively.

Posted Date: 9/13/2012 8:10:50 AM | Location : United States







Related Discussions:- Graphical method for interpolation, Assignment Help, Ask Question on Graphical method for interpolation, Get Answer, Expert's Help, Graphical method for interpolation Discussions

Write discussion on Graphical method for interpolation
Your posts are moderated
Related Questions
At time t an investor shorts a $1 face value zero coupon bond that matures at time T = t and uses the entire proceeds to purchase a zero coupon bond that matures at time


Two angles are complementary. The calculate of one angle is four times the measure of the other. Evaluate the measure of the larger angle. a. 36° b. 72° c. 144° d. 18°


Question: Solve the initial value problem 2x'' +x'-x =27 Cos2t +6 Sin 2t, x(0)=2 , x'(0)= -2 by using Laplace transform method.

1.)3 3/8 divided by 4 7/8 plus 3 2.)4 1/2 minus 3/4 divided by 2 3/8

what is integration and how is it important


In a collection of 30 dissimilar birds, 15 eat worms, 18 eat fruit, and 12 eat seeds. Accurately 8 eat worms and seeds, 8 eat worms and fruit, 7 eat fruit and seeds, and 4 eat each

What fraction could you add to 4/7 to get a sum greater than 1