matlab的piecewise,MATLAB中关于piecewise的积分以及赋值问题。

在编写一个较大的多参数程序中，matlab计算出了带piecewise的分段函数，我需要将其进行积分，但经过int后得到的答案为无解，我认为该分段函数有解，所以想请教，piecewise如何赋值，如何积分。计算出的函数是这样的：piecewise([0 < (x < 99/100 & 83/100 <= x)*(x - 99/100) - (68*x)/2075 + (x < 33/50 & 17/100 <= x)*(-(16*x)/83) & 0 < (x < 99/100 & 83/100 <= x)*(x - 99/100) - (16*x^2)/83 + (x < 33/50 & 17/100 <= x)*(-(16*x)/83) & 0 < x | (x < 99/100 & 83/100 <= x)*(x - 99/100) - (68*x)/2075 + (x < 33/50 & 17/100 <= x)*(-(16*x)/83) < 0 & (x < 99/100 & 83/100 <= x)*(x - 99/100) - (16*x^2)/83 + (x < 33/50 & 17/100 <= x)*(-(16*x)/83) < 0 & x < 0, -((x < 83/100 & 69/100 <= x)*((6537804519111407*x)/4398046511104 + 7660717367719629/43980465111040) + (7648053412983817*x^2)/4398046511104 + (x <= 23/20 & 83/100 <= x)*(2225411534618623871/439804651110400 - 4400*x))*((68*x)/2075 - (x < 99/100 & 83/100 <= x)*(x - 99/100) - (x < 33/50 & 17/100 <= x)*(-(16*x)/83)) < -((16*x^2)/83 - (x < 99/100 & 83/100 <= x)*(x - 99/100) - (x < 33/50 & 17/100 <= x)*(-(16*x)/83))*((527715685495883373*x)/439804651110400 + (x < 83/100 & 69/100 <= x)*((6537804519111407*x)/4398046511104 + 7660717367719629/43980465111040) + (x <= 23/20 & 83/100 <= x)*(2225411534618623871/439804651110400 - 4400*x))], [0 < (x < 99/100 & 83/100 <= x)*(x - 99/100) - (68*x)/2075 + (x < 33/50 & 17/100 <= x)*(-(16*x)/83) & 0 < (x < 99/100 & 83/100 <= x)*(x - 99/100) - (16*x^2)/83 + (x < 33/50 & 17/100 <= x)*(-(16*x)/83) & x < 0 | (x < 99/100 & 83/100 <= x)*(x - 99/100) - (68*x)/2075 + (x < 33/50 & 17/100 <= x)*(-(16*x)/83) < 0 & (x < 99/100 & 83/100 <= x)*(x - 99/100) - (16*x^2)/83 + (x < 33/50 & 17/100 <= x)*(-(16*x)/83) < 0 & 0 < x, -((16*x^2)/83 - (x < 99/100 & 83/100 <= x)*(x - 99/100) - (x < 33/50 & 17/100 <= x)*(-(16*x)/83))*((527715685495883373*x)/439804651110400 + (x < 83/100 & 69/100 <= x)*((6537804519111407*x)/4398046511104 + 7660717367719629/43980465111040) + (x <= 23/20 & 83/100 <= x)*(2225411534618623871/439804651110400 - 4400*x)) < -((x < 83/100 & 69/100 <= x)*((6537804519111407*x)/4398046511104 + 7660717367719629/43980465111040) + (7648053412983817*x^2)/4398046511104 + (x <= 23/20 & 83/100 <= x)*(2225411534618623871/439804651110400 - 4400*x))*((68*x)/2075 - (x < 99/100 & 83/100 <= x)*(x - 99/100) - (x < 33/50 & 17/100 <= x)*(-(16*x)/83))])

希望大佬赐教。