Graph of integral

12182014, 07:12 PM
Post: #1




Graph of integral
Wondering how to plot integral of abs(sin(x)).
In solve, it works well...I can put integral of (abs(sin(X)),X,0,A)=some value, and solve for A. How do I plot the integral? 

12182014, 10:23 PM
(This post was last modified: 12182014 10:37 PM by CR Haeger.)
Post: #2




RE: Graph of integral  
12192014, 02:09 AM
Post: #3




RE: Graph of integral
Thanks!
Interestingly, here's some comparisons for int(abs(sin(x)))=4 Actual answer is 2pi=~6.28318530718 In solve Prime comes up with 6.28318305852 In Graph where I used AREA for the integral minus 4, root came up with 6.2831849099, more accurate than the solve app answer. My CASIO fx9860GII in solve finds 6.2831844 In graph mode, finding x for y=4, after 6+ minutes produces 6.283145931, less accurate than the solve app. 

12192014, 02:19 AM
Post: #4




RE: Graph of integral
Didn't experiment to see how much the size of the domain of the graph and range had on accuracy in finding my graphing solutions for setting the integral equal to 4...on the CASIO, I used a domain of .2<x<8, range ~.2<y<9.
On Prime, autoscale produced a domain of about .2<x<8, range ~4<y<~1.1 

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