求解释
本帖最后由 zhangchengpeng 于 2011-1-9 15:01 编辑syms w ;
solve('- (3*sign(-w*(500*i - 9*w))*(500*i - 18*w))/(3125*abs((9*i*w)/500 + 1)*abs(- (2257881474622049*w^2)/4611686018427387904 + (17*i*w)/625 + 1)) - (27*i*sign((9*i*w)/500 + 1)*abs(-w*(500*i - 9*w)))/(1562500*abs((9*i*w)/500 + 1)^2*abs(- (2257881474622049*w^2)/4611686018427387904 + (17*i*w)/625 + 1)) - (3*abs(-w*(500*i - 9*w))*sign(- (2257881474622049*w^2)/4611686018427387904 + (17*i*w)/625 + 1)*((17*i)/625 - (2257881474622049*w)/2305843009213693952))/(3125*abs((9*i*w)/500 + 1)*abs(- (2257881474622049*w^2)/4611686018427387904 + (17*i*w)/625 + 1)^2)=0')
ans =
??? Error using ==> reshape
To RESHAPE the number of elements must not change.
Error in ==> sym.disp at 30
strs = reshape(strs,sz);
Error in ==> sym.display at 17
disp(X)
为什么出现这种情况？？？？？？？？？？？？
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