Today,I use the method “Cesium.Matrix4.inverseTransformation” to get the inverse matrix,and use the method “Cesium.Matrix4.multiplyTransformation” to check the result,then I get the result below:

m1 is a basic matrix4,and the m2 is the inverse matrix4,MM is the result of m1 multiply by m2,the accurate result must be identity matrix4.But in the picture,we can found it is a little different,Will it cause some problems?I really want to know it.