approximate coordinates

基本解释

We derived an approximate algorithm from geocentric to geodetic coordinates. The algorithm is very simple, but its accuracy can satisfied general geo-science research.
给出了一种由地心坐标到大地坐标的近似算法，这种算法非常简单，但它的精度可以满足一般地学研究的需要。
www.eq-gc1.com
When locating the seismic work area, the rectangular vertexes on the computer screen showed only the approximate coordinates from which the accurate figures had to be deduced.
在确定地震工区位置时，用鼠标在计算机屏幕上点出的矩形顶点只是近似值，需要根据这些近似值求出工区矩形顶点的精确值。
Analysis and examples show that using this method to estimate the approximate coordinates, the accuracy is obviously improved comparing with the approximate coordinates provided by GPS.
理论分析和实例表明，该方法确定的运动载体近似坐标与GPS绝对定位提供的近似坐标相比，精度有明显的提高。