神马作文网maple solve 不计算,直接待机,是什么情况,求MAPLE高手帮帮忙
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maple solve 不计算,直接待机,是什么情况,求MAPLE高手帮帮忙
solve({C1 = 0,C10 = 0,C11 = 0,C12 = 0,C13 = 0,C14 = 0,C15 = 0,C16 = 0,C17 = 0,C18 = 0,C19 = 0,C2 = 0,C20 = 0,C21 = 0,C22 = 0,C23 = 0,C24 = 0,C3 = 0,C4 = 0,C5 = 0,C6 = 0,C7 = 0,C8 = 0,C9 = 0},{a1,a2,a3,a4,h1,h2,h3,h4,k1,k2,k3,k4,p1,p2,p3,p4,t,w1,w2,w3,w4,x,y,z}),为什么不计算啊,我晕死!
然后将系数为零，我把方程组弄出来，然后solve({C1 = 0,C10 = 0,C11 = 0,C12 = 0,C13 = 0,C14 = 0,C15 = 0,C16 = 0,C17 = 0,C18 = 0,C19 = 0,C2 = 0,C20 = 0,C21 = 0,C22 = 0,C23 = 0,C24 = 0,C3 = 0,C4 = 0,C5 = 0,C6 = 0,C7 = 0,C8 = 0,C9 = 0},{a1,a2,a3,a4,h1,h2,h3,h4,k1,k2,k3,k4,p1,p2,p3,p4,w1,w2,w3,w4})，maple算都不算，直接待机，用其他方程或者其他测试函数代入也是一样的，到解方程组这里卡住，但是我有个例子却能正常解出答案，
solve({C1 = 0,C10 = 0,C11 = 0,C12 = 0,C13 = 0,C14 = 0,C15 = 0,C16 = 0,C17 = 0,C18 = 0,C19 = 0,C2 = 0,C20 = 0,C21 = 0,C22 = 0,C23 = 0,C24 = 0,C3 = 0,C4 = 0,C5 = 0,C6 = 0,C7 = 0,C8 = 0,C9 = 0},{a1,a2,a3,a4,h1,h2,h3,h4,k1,k2,k3,k4,p1,p2,p3,p4,t,w1,w2,w3,w4,x,y,z}),为什么不计算啊,我晕死!
然后将系数为零，我把方程组弄出来，然后solve({C1 = 0,C10 = 0,C11 = 0,C12 = 0,C13 = 0,C14 = 0,C15 = 0,C16 = 0,C17 = 0,C18 = 0,C19 = 0,C2 = 0,C20 = 0,C21 = 0,C22 = 0,C23 = 0,C24 = 0,C3 = 0,C4 = 0,C5 = 0,C6 = 0,C7 = 0,C8 = 0,C9 = 0},{a1,a2,a3,a4,h1,h2,h3,h4,k1,k2,k3,k4,p1,p2,p3,p4,w1,w2,w3,w4})，maple算都不算，直接待机，用其他方程或者其他测试函数代入也是一样的，到解方程组这里卡住，但是我有个例子却能正常解出答案，
咋算啊?那么多常数等于 0,那么多未知数,却没有方程.Maple 算不出任何结果
再问： > restart; > f := a1*cos(k1*x+h1*y+p1*z+w1*t)+a2*sin(k2*x+h2*y+p2*z+w2*t)+a3*ch(k3*x+h3*y+p3*z+w3*t)+exp(-k4*x-h4*y-p4*z-w4*t)+a4*exp(k4*x+h4*y+p4*z+w4*t); eq := diff(ln(f), `$`(x, 4))+6*(diff(ln(f), `$`(x, 2)))*(diff(ln(f), `$`(x, 2)))-(diff(ln(f), x, y))-(diff(ln(f), x, t))eq1 := collect(simplify(eq), {ch, cos, exp, sin})
再答： eq1 := collect(simplify(eq), {ch, cos, exp, sin}) 前面加分号，或另起一行 {a1, a2, a3, a4, h1, h2, h3, h4, k1, k2, k3, k4, p1, p2, p3, p4, t, w1, w2, w3, w4, x, y, z} 未知数的表达似有不妥，都是待求的未知量？
再问： 追问是第一页，问题补充第二页，或者加我Q306505871
再问： > restart; > f := a1*cos(k1*x+h1*y+p1*z+w1*t)+a2*sin(k2*x+h2*y+p2*z+w2*t)+a3*ch(k3*x+h3*y+p3*z+w3*t)+exp(-k4*x-h4*y-p4*z-w4*t)+a4*exp(k4*x+h4*y+p4*z+w4*t); eq := diff(ln(f), `$`(x, 4))+6*(diff(ln(f), `$`(x, 2)))*(diff(ln(f), `$`(x, 2)))-(diff(ln(f), x, y))-(diff(ln(f), x, t))eq1 := collect(simplify(eq), {ch, cos, exp, sin})
再答： eq1 := collect(simplify(eq), {ch, cos, exp, sin}) 前面加分号，或另起一行 {a1, a2, a3, a4, h1, h2, h3, h4, k1, k2, k3, k4, p1, p2, p3, p4, t, w1, w2, w3, w4, x, y, z} 未知数的表达似有不妥，都是待求的未知量？
再问： 追问是第一页，问题补充第二页，或者加我Q306505871