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Calculate the area under a curve with Matlab
- Thread starter aslfd
- Start date
GregLocock
Automotive
I don't know if you can. I can.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376
Wikipedia can, too:
Now, you just need to decide what accuracy you need.
TTFN
I can do absolutely anything. I'm an expert!
homework forum: //faq731-376 forum1529
Now, you just need to decide what accuracy you need.
TTFN
I can do absolutely anything. I'm an expert!
homework forum: //faq731-376 forum1529
- Thread starter
- #5
![[bigsmile]](/data/assets/smilies/bigsmile.gif "[bigsmile] [bigsmile]")
cibachrome
Automotive
Compute the area ABOVE the curve from the total area of the graph paper and subtract it.
Print the figure and cut out the area of the graph and weight it on a precision scale. Cut out a 1 cm by 1 cm piece of paper and weigh it also. Use the scale factor (gram crackers per square cm) to figure out the area under the curve.
Digitize the curve and fit it to a series of very small straight lines. Then integrate it using the ani-Cramer vs. Cramer rule.
Use the built in functions in Lotus 1-2-3 to compute the area and save it as a .csv file. Import that into Excel and the answer will be in the 'Answer' worksheet tab.
Double integrate the curve and take the first differential.
Use the lsqcurvefit function (Optimization Toolbox) to fit the digitized curve to a mass spring damper Simulink model. Then use an integrater to perform the calculation.
That's enough for now, my candlestick phone is ringing..
Print the figure and cut out the area of the graph and weight it on a precision scale. Cut out a 1 cm by 1 cm piece of paper and weigh it also. Use the scale factor (gram crackers per square cm) to figure out the area under the curve.
Digitize the curve and fit it to a series of very small straight lines. Then integrate it using the ani-Cramer vs. Cramer rule.
Use the built in functions in Lotus 1-2-3 to compute the area and save it as a .csv file. Import that into Excel and the answer will be in the 'Answer' worksheet tab.
Double integrate the curve and take the first differential.
Use the lsqcurvefit function (Optimization Toolbox) to fit the digitized curve to a mass spring damper Simulink model. Then use an integrater to perform the calculation.
That's enough for now, my candlestick phone is ringing..
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