Comments (7)
C++ doesn't like Type Punning. You would have to deactive checking for strict-aliasing in your compiler, which I wouldn't recommend. Simply replace fastInvSquare() by math.h 1/sqrt(). The speedloss is insignificant.
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@facchinm can you explain how to rectify this error(approach)
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Simply replace fastInvSquare() by math.h 1/sqrt()
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I am with thekunalsaini as I get the same error and don't understand the fix. Do I have to search and replace fastInvSquare() by math.h 1/sqrt()? In what file? Sorry if its a stupid question but I just don't understand it.
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In what file?
MadgwickAHRS/src/MadgwickAHRS.cpp
Line 231 in 0a909d2
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Sorry but if I replace float Madgwick::invSqrt(float x) {
with float math.h 1/sqrt(float x) {
it (understandably) throws an error.
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math.h is the header containing sqrt()
you can replace
float Madgwick::invSqrt(float x) { float halfx = 0.5f * x; float y = x; long i = *(long*)&y; i = 0x5f3759df - (i>>1); y = *(float*)&i; y = y * (1.5f - (halfx * y * y)); y = y * (1.5f - (halfx * y * y)); return y; }
by
float Madgwick::invSqrt(float x) { return 1/sqrt(x); }
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Related Issues (20)
- Yaw values in the sample code (visualize)
- Orientation visualizer understanding problem HOT 3
- Instabilities with yaw/pitch/roll values while device is stable HOT 11
- Pitch and yaw reversed in Visualizer HOT 3
- Madgwick::computeAngles incorrect. HOT 1
- Errors calculating angles and wrong angles HOT 2
- Compass consistently 20 degrees off? HOT 1
- Add quaternions. HOT 1
- Madgwick Filter
- Keep getting the pitch,roll and yaw as nan or nan(ind)
- Issues on how to use ur code to process data from cell phone's inner sensors HOT 1
- Instability from fast inverse square root implementation
- Add GitHub Action based CI
- Add GitHub Actions workflow to synchronise with shared repository labels
- Yaw drift LSM6D3S HOT 3
- Error caused by repeated code HOT 1
- Centrifugal Force Compensation IMU HOT 1
- Changes and drift in Yaw when varying Pitch/Roll
- 2x missing x2
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