Solving an equation with rational exponents

Aaron Acosta

2015 4 21

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Im on the last step of my program and cannot seem to solve the final equation using the matlab solver. Here's the part of the code:

AR = 8
lambda = .35
tc_bar = .128
K_w = 1.01
n = 3.75
sweep = 35
ws_to = 141
syms x 
w_wc = (.00945 * AR^.8 * (1+lambda)^.25 * K_w * n^.5)/(tc_bar^.4 * cosd(sweep) * ws_to^.695)
w_w = w_wc*x^1.195
w_fus = 2235*(x)^.235
w_lg = .04*(x)
w_np = .0208*(x)
w_wts = 1.1967*w_w
w_pp = .1046*(x)
w_f = .4007*(x)
w_pl = 71125
w_fe = 38740 + .035*(x)
eqn = w_w + w_fus + w_lg + w_np + w_wts + w_pp + w_f + w_pl + w_fe - x 
w_to = solve(eqn,x,'Real', true)

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Aaron Acosta 2015-4-21

在 MATLAB Online 中打开

This is the result of the code:

 Warning: The solutions are parameterized by the symbols: z2. To include
  parameters and conditions in the solution, specify the 'ReturnConditions'
  option. 
  > In solve>warnIfParams at 511
    In solve at 361
    In testrun at 25 
  Warning: The solutions are valid under the following conditions:
  3220974453495378739200000*z2^47 + 29672146199767698649*z2^239 +
  158332151379539053772800000 == 574875485234589073408*z2^200 & 0 <= z2. To
  include parameters and conditions in the solution, specify the
  'ReturnConditions' option. 
  > In solve>warnIfParams at 518
    In solve at 361
    In testrun at 25 
w_to =
z2^200