Integral of greatest integer function and its graph

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SUMMARY

The discussion focuses on calculating the area under the graph of the greatest integer function, specifically from ##\frac{1}{n}## to ##1##. Participants noted the presence of jumps at points such as ##\frac{1}{2}##, ##\frac{1}{3}##, and ##\frac{1}{4}##, which are critical for understanding the function's behavior. The conversation emphasizes the importance of visualizing the graph to accurately compute the integral, despite some glitches in the vertical lines being present in the graphical representation.

PREREQUISITES
  • Understanding of the greatest integer function (floor function)
  • Basic knowledge of calculus, particularly integration
  • Familiarity with graphing functions and interpreting their behavior
  • Ability to analyze discontinuities in mathematical functions
NEXT STEPS
  • Study the properties of the greatest integer function and its discontinuities
  • Learn techniques for calculating definite integrals involving piecewise functions
  • Explore graphical representations of integrals to enhance visual understanding
  • Investigate the implications of jumps in functions on integration results
USEFUL FOR

Students studying calculus, mathematics educators, and anyone interested in understanding the integral of piecewise functions, particularly the greatest integer function.

tensaiyan
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Homework Statement
Calculus problem.

How to calculate the integral of greatest function y=[1/x] ? And can someone please show me how to draw the graph of that function . Upper limit= 1,lower limit= 1/n (where n is natural number)

Please give me some hints or explanations for this kind of integral.
Relevant Equations
I already tried to answer the question but don’t know whether the answer is right or not. I attach some of my steps done below.
246770
246771
 
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I won't try to read a sideways picture, but here's the picture you asked for:
jumps.jpg

showing jumps at ##\frac 1 2,~ \frac 1 3,~ \frac 1 4## etc. Ignore the glitches in the vertical lines. You just need to calculate the area under the graph from ##\frac 1 n## to ##1##.
 
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LCKurtz said:
I won't try to read a sideways picture, but here's the picture you asked for:
View attachment 246783
showing jumps at ##\frac 1 2,~ \frac 1 3,~ \frac 1 4## etc. Ignore the glitches in the vertical lines. You just need to calculate the area under the graph from ##\frac 1 n## to ##1##.
Thanks,it was very really helpful!
 

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