如何用 实用数学软件 解方程组

直接把方程组输入即可,非常方便
*************************用时：0.1875秒******************************
{-b*sin(a+6t)+n=40.4945 -b*sin(a+7t)+n=40.5696 -b*sin(a+8t)+n=41.0443 -b*sin(a+9t)+n=41.4190}
a=1.00149945 -4.143092104 7.284684757 2.140093204 -239.762541123
b=0.491530083 0.491530083 0.491530083 0.491530083 -0.491530083
n=40.949283987 40.949283987 40.949283987 40.949283987 40.949283987
t=1.077226215 5.205959092 1.077226215 -1.077226215 -89.041820516
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我用的是matlab
syms a b n t
[a,b,n,t]=solve('-b*sin(a+6*t)+n=40.4945','-b*sin(a+7*t)+n=40.5696','-b*sin(a+8*t)+n=41.0443','-b*sin(a+9*t)+n=41.4190 ')
a =

-2.1400932035609147586637969667259
-1.0014994500288784797988464165536
2.1400932035609147586637969667259
1.0014994500288784797988464165536

b =

-.49153008270618919640083077724753
-.49153008270618919640083077724753
.49153008270618919640083077724753
.49153008270618919640083077724753

n =

40.949283987189751801441152922338
40.949283987189751801441152922338
40.949283987189751801441152922338
40.949283987189751801441152922338

t =

1.0772262149940490008272798975116
-1.0772262149940490008272798975116
-1.0772262149940490008272798975116
1.0772262149940490008272798975116