MMA845 1 Chip calculates the inclination angle through acceleration, which has three acceleration components. How to establish an algorithm to calculate the inclination angle? Can you tell QQ? Novice solution Since it's a vector, it's easy. Remember: no matter what kind of vector, the composition of components is sum. Then, the composition of each component of acceleration can be regarded as the composition of force. As for the inclination angle, it can be found according to the conditions in the problem combined with mathematical knowledge (such as similarity). (Angle, if there is no special emphasis in the title, then it is the angle with the initial speed. )