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debateshang · 2008-11-30, 11:44

solve('((r^3+3*r)^2+4)^0.25*cos(0.5*atan(-2/(r^3+3*r)))/(r^3+4*r)^0.5+r/(r^4+4*r^2)^0.75-2')
Warning: Warning, solutions may have been lost

ans =

.21901154461901922435354309625469
:sweat:

2008-11-30, 11:44	#10
debateshang 初级会员注册日期: 2008-11-30 年龄: 40 帖子: 20 声望力: 17	回复: [求助]符号方程求解 solve('((r^3+3r)^2+4)^0.25cos(0.5atan(-2/(r^3+3r)))/(r^3+4r)^0.5+r/(r^4+4r^2)^0.75-2') Warning: Warning, solutions may have been lost ans = .21901154461901922435354309625469 :sweat: