5.2.1 vol of sin x^2 ; 0\le x \le \dfrac{\pi}{2}

  • Context: MHB 
  • Thread starter Thread starter karush
  • Start date Start date
  • Tags Tags
    Sin
Click For Summary
SUMMARY

The discussion centers on the integral $\int_0^{\pi/2} \sin(x^2) \, dx$, which represents the area under the curve of the function $y=\sin(x^2)$ from $0$ to $\frac{\pi}{2}$. Participants clarify that this integral does not yield a volume unless specified as a volume of rotation or similar cross sections. It is established that the integral cannot be expressed in terms of elementary functions but can be approximated to any desired accuracy using numerical methods.

PREREQUISITES
  • Understanding of definite integrals and their geometric interpretations
  • Familiarity with the function $y=\sin(x^2)$
  • Knowledge of numerical approximation techniques for integrals
  • Concept of volumes of rotation in calculus
NEXT STEPS
  • Research numerical integration techniques such as Simpson's Rule and the Trapezoidal Rule
  • Explore the concept of volumes of revolution using the disk and washer methods
  • Learn about the Fresnel integrals and their applications
  • Investigate software tools like MATLAB or Python's SciPy for numerical integration
USEFUL FOR

Mathematicians, calculus students, educators, and anyone interested in advanced integral calculus and numerical methods for approximating integrals.

karush
Gold Member
MHB
Messages
3,240
Reaction score
5
volume of the solid $y=\sin (x^2)\quad 0\le x \le \dfrac{\pi}{2}$
$\displaystyle \int_0^{\pi/2}\sin (x^2)\ dx$
ok think this should be area not volume but hope my int is set up ok
 
Physics news on Phys.org
The integral you have is indeed area. Your statement of “volume” is incomplete.
Is this a volume of rotation with respect to a given axis of rotation, or is it a volume
of similar cross sections whose base lies in a region defined by the given curve,
or … something else?
 
If you really intend $\int_0^{\pi/2} \sin(x^2) dx$, that cannot be integrated in terms of elementary function but can be approximated to any desired accuracy.
 

Similar threads

  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
Replies
7
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 1 ·
Replies
1
Views
1K