请教：关于非线性二元拟合
t^2=c^2(a^2+1)/(a*x-y+b)^2自变量为x和y，因变量是t，我想拟合参数a，b，c请教一下高手指点一下方法，谢谢
xyt t^297.4728.65267.571556.2598.9128.49246.860910.24104.0630.66191.236557.44103.6730.63181.532942.25107.4731.2124359049107.2630.74272.274092.84103.4829.6285.881681.64106.6330.46291.184739.21106.7530.13297.488446.76103.5729.74289.283636.64104.5530.39263.569432.25101.9630.05204.841943.04103.7729.55282.879975.84100.2730187.835268.84103.8530.08283.380258.89103.928.96173.930241.21105.0629.58266.370915.69106.1130.8423555225103.8529.83290.284216.04105.3930.87187.335081.29102.3629.23270.573170.25105.5730.53270.273008.0499.828.92271.873875.24103.0129.98275.375790.09102.5128.64129.916874.01
这个问题烦恼好久了，希望有人帮一下忙
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