In linear algebra, Cramer's rule is an explicit formula for the solution of a system of linear equations with as many equations as unknowns, valid whenever the system has a unique solution.
The origins of algebra can be traced to ancient Babylonia, they would commonly use linear interpolation to approximated values. One of the most famous tablets is the Plimpton 322 tablet, created around 1600 - 1900 B.C. So it would be safe to say about 3,000 to 4,000 years old.
By using the formula for a straight line equation graphed on the Cartesian plane by means of the x and y axes.
A relationship that occurs when variable quantities are directly proportional to one another. A linear relationship can be represented on a graph as a STRAIGHT LINE. Linear relationships always follow the formula: y=mx+b where y is the value of the y-coordinate, where my is the slope of the line, where x is the value of the x-coordinate, and b is the y-intercept
Derviative of function is also important.So it does not guarantee a desired curve,which might have bumps.
The process is called interpolation, which applies a computed formula of the line to a given x or y value. (More specifically, it is "linear interpolation".)
Linear interpolation is used as a method used in mathematics of constructing a curve that has the best fit to a series of points of data using linear polynomials.
Interpolation in general is a way to determine intermediate values from a set of coordinates. Linear interpolation would be to fit a single linear function to the entire set of coordinates. Piecewise linear interpolation would then be to determine intermediate values from the set of coordinates by fitting linear functions between each set of coordinates. Connect-the-dots so to speak.
Advantages over what? For what? Generally linear interpolation is done because one infers that the relationship between points is linear and/or it is the the easiest kind of interpolation. In the absence of data or theory to help you infer the relationship between points the principle of parsimony suggest that use the simplest that gets the job done - linear.
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when the value of x for which f(y) is to be found lies in the upper part of forward difference table then we use Newton's forward interpolation formula..
What you are asking is not precisely clear, but in general missing data is filled in by a process of interpolation. eg. Linear interpolation is a method of curve fitting using linear polynomials to construct new data points within the range of a discrete set of known data points.
The bisection method is simpler to implement and guarantees convergence to a root if one exists within the initial interval, but it can be slower as it always halves the interval. In contrast, linear interpolation converges faster but does not guarantee convergence, and it might fail if the function is not well approximated by a linear model in the interval.
Linear Interpolation (Statistics) Below is a Frequency Table of the Lengths, to the nearest minute, of phone calls made from an office one day.Length (min)-----------------Frequency0 - 2 --------------------------------- 83 - 5 --------------------------------- 116 - 9 --------------------------------- 1610 - 15 ----------------------------- 1416 - 20 ------------------------------ 9> 20 ---------------------------------- 3
Newton's forward interpolation formula is derived by constructing a series of finite divided differences based on the given data points, then expressing the interpolation polynomial using these differences. By determining the first divided difference as the increments of function values, and subsequent divided differences as the increments of the previous differences, the formula is formulated algebraically as a series of terms involving these differences. This results in a polynomial that can be used to interpolate values within the given data range using forward differences.
Suppose you know the density of some (strange) substance at 10oC and 20oC, 125 gm/cm3 and 145 gm/cm3. You want to know its density at, say, 13oC. You could use linear interpolation. To do so, you first find the linear function that satisfies the points (10, 125) and (20, 145). I think it's D=105 + 2t. Now since 13 is between the temperatures for which we have data we can interpolate: 105 + 2(13) = 131 or 131 gm/cm3.
The formula for linear momentum (p) is: [ p = m \cdot v ] where: p is the linear momentum, m is the mass of the object, and v is the velocity of the object.