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Maple continuously shows 'Evaluating'

February 3, 2023, 10:58 am
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Maple continuously shows 'Evaluating' and there is no output. How to fix it?

> 

restart

> 

with(LinearAlgebra)

> 

assume(x::real); assume(t::real); assume(`α__1`::real); assume(`α__2`::real); assume(nu::real)

> 

A2s := Matrix([[H__11*exp(I*v__11)/(`λ__1`-conjugate(`λ__1`))+H__13*exp(I*v__21)/(`λ__1`-conjugate(`λ__2`))+1, H__12*exp(-I*v__11)/(`λ__1`-conjugate(`λ__1`))+H__14*exp(-I*v__21)/(`λ__1`-conjugate(`λ__2`)), H__11*exp(I*v__12)/(`λ__2`-conjugate(`λ__1`))+H__13*exp(I*v__22)/(`λ__2`-conjugate(`λ__2`)), H__12*exp(-I*v__12)/(`λ__2`-conjugate(`λ__1`))+H__14*exp(-I*v__22)/(`λ__2`-conjugate(`λ__2`))], [H__12*exp(I*v__11)/(`λ__1`-conjugate(`λ__1`))+H__14*exp(I*v__21)/(`λ__1`-conjugate(`λ__2`)), 1+H__11*exp(-I*v__11)/(`λ__1`-conjugate(`λ__1`))+H__13*exp(-I*v__21)/(`λ__1`-conjugate(`λ__2`)), H__12*exp(I*v__12)/(`λ__2`-conjugate(`λ__1`))+H__14*exp(I*v__22)/(`λ__2`-conjugate(`λ__2`)), H__11*exp(-I*v__12)/(`λ__2`-conjugate(`λ__1`))+H__13*exp(-I*v__22)/(`λ__2`-conjugate(`λ__2`))], [H__13*exp(I*v__11)/(`λ__1`-conjugate(`λ__1`))+H__33*exp(I*v__21)/(`λ__1`-conjugate(`λ__2`)), H__14*exp(-I*v__11)/(`λ__1`-conjugate(`λ__1`))+H__34*exp(-I*v__21)/(`λ__1`-conjugate(`λ__2`)), 1+H__13*exp(I*v__12)/(`λ__2`-conjugate(`λ__1`))+H__33*exp(I*v__22)/(`λ__2`-conjugate(`λ__2`)), H__14*exp(-I*v__12)/(`λ__2`-conjugate(`λ__1`))+H__34*exp(-I*v__22)/(`λ__2`-conjugate(`λ__2`))], [H__14*exp(I*v__11)/(`λ__1`-conjugate(`λ__1`))+H__34*exp(I*v__21)/(`λ__1`-conjugate(`λ__2`)), H__13*exp(-I*v__11)/(`λ__1`-conjugate(`λ__1`))+H__33*exp(-I*v__21)/(`λ__1`-conjugate(`λ__2`)), H__14*exp(I*v__12)/(`λ__2`-conjugate(`λ__1`))+H__34*exp(I*v__22)/(`λ__2`-conjugate(`λ__2`)), H__13*exp(-I*v__12)/(`λ__2`-conjugate(`λ__1`))+H__33*exp(-I*v__22)/(`λ__2`-conjugate(`λ__2`))+1]])

Matrix(%id = 36893490803012390908)

(1)
> 

vvalue := {v__11 = (conjugate(`λ__1`)-`#msub(mi("λ",fontstyle = "normal"),mn("1"))`)*x+(4*`α__1`*(conjugate(`λ__1`)^3-`λ__1`^3)+2*`α__2`*(conjugate(`λ__1`)^2-`λ__1`^2)-8*nu*(conjugate(`λ__1`)^4-`λ__1`^4))*t, v__12 = (conjugate(`λ__1`)-`#msub(mi("λ",fontstyle = "normal"),mn("2"))`)*x+(4*`α__1`*(conjugate(`λ__1`)^3-`λ__2`^3)+2*`α__2`*(conjugate(`λ__1`)^2-`λ__2`^2)-8*nu*(conjugate(`λ__1`)^4-`λ__2`^4))*t, v__21 = (conjugate(`λ__2`)-`#msub(mi("λ",fontstyle = "normal"),mn("1"))`)*x+(4*`α__1`*(conjugate(`λ__2`)^3-`λ__1`^3)+2*`α__2`*(conjugate(`λ__2`)^2-`λ__1`^2)-8*nu*(conjugate(`λ__2`)^4-`λ__1`^4))*t, v__22 = (conjugate(`λ__2`)-`#msub(mi("λ",fontstyle = "normal"),mn("2"))`)*x+(4*`α__1`*(conjugate(`λ__2`)^3-`λ__2`^3)+2*`α__2`*(conjugate(`λ__2`)^2-`λ__2`^2)-8*nu*(conjugate(`λ__2`)^4-`λ__2`^4))*t}

{v__11 = (conjugate(lambda__1)-`#msub(mi("λ",fontstyle = "normal"),mn("1"))`)*x+(4*alpha__1*(conjugate(lambda__1)^3-lambda__1^3)+2*alpha__2*(conjugate(lambda__1)^2-lambda__1^2)-8*nu*(conjugate(lambda__1)^4-lambda__1^4))*t, v__12 = (conjugate(lambda__1)-`#msub(mi("λ",fontstyle = "normal"),mn("2"))`)*x+(4*alpha__1*(conjugate(lambda__1)^3-lambda__2^3)+2*alpha__2*(conjugate(lambda__1)^2-lambda__2^2)-8*nu*(conjugate(lambda__1)^4-lambda__2^4))*t, v__21 = (conjugate(lambda__2)-`#msub(mi("λ",fontstyle = "normal"),mn("1"))`)*x+(4*alpha__1*(conjugate(lambda__2)^3-lambda__1^3)+2*alpha__2*(conjugate(lambda__2)^2-lambda__1^2)-8*nu*(conjugate(lambda__2)^4-lambda__1^4))*t, v__22 = (conjugate(lambda__2)-`#msub(mi("λ",fontstyle = "normal"),mn("2"))`)*x+(4*alpha__1*(conjugate(lambda__2)^3-lambda__2^3)+2*alpha__2*(conjugate(lambda__2)^2-lambda__2^2)-8*nu*(conjugate(lambda__2)^4-lambda__2^4))*t}

(2)
> 

NULL

> 

A2s2 := Determinant(A2s); dets22 := simplify(A2s2, size); length(%)

8949

(3)
> 

dets22f := simplify(subs(vvalue, dets22))

> 

NULL

Download sol1det.mw

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