Computing the line integral of the scalar function over the curve

In summary, a line integral of a scalar function over a curve is a mathematical concept used to calculate the total value of a function along a specific path. It involves breaking the curve into segments and multiplying the function values by the length of each segment. This concept has many real-world applications in fields such as physics and engineering. The main difference between a line integral and a regular integral is that the former takes into account the direction and length of the curve. Techniques such as using parametric equations or symmetry properties can help simplify the computation of line integrals.
  • #1
DrunkApple
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Homework Statement


f(x,y) = [itex]\sqrt{1+9xy}[/itex], y = [itex]x^{3}[/itex] for 0≤x≤1


Homework Equations





The Attempt at a Solution


I don't even know how to start this problem. I thought about c(t) since that's all I have been doing, but there isn't even c(t). I only recognize domain. Can anyone help me please?
 
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  • #2
Start with parameterization x = t, y = t3 so your curve is given by
[tex]\vec R(t) = \langle t, t^3\rangle,\, 0\le t\le 1[/tex]
 

Related to Computing the line integral of the scalar function over the curve

1. What is a line integral of a scalar function over a curve?

A line integral of a scalar function over a curve is a mathematical concept used to calculate the total value of a scalar function along a specific path or curve. It takes into account both the values of the function and the length of the curve.

2. How is the line integral of a scalar function over a curve computed?

The line integral of a scalar function over a curve is computed by breaking the curve into small segments and calculating the value of the function at each point. These values are then multiplied by the length of each segment and added together to obtain the total value of the integral.

3. What are some real-world applications of computing line integrals of scalar functions over curves?

Line integrals of scalar functions over curves have various applications in fields such as physics, engineering, and economics. For example, they can be used to calculate work done by a force along a curved path, or to determine the total flow of a vector field along a particular curve.

4. What is the difference between a line integral and a regular integral?

A regular integral calculates the area under a curve in a two-dimensional plane, while a line integral calculates the total value of a function along a specific curve in a three-dimensional space. Line integrals also take into account the direction and length of the curve, whereas regular integrals do not.

5. Are there any techniques for simplifying the computation of line integrals of scalar functions over curves?

Yes, there are various techniques for simplifying the computation of line integrals, such as using parametric equations, changing the orientation of the curve, or using symmetry properties. These techniques can help reduce the complexity of the integral and make it easier to calculate.

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