三元一次方程求解
X+11.1327Y+1.6094Z=4.7095X+11.2835Y+2.3026Z=4.1109X+11.1012Y+2.8904Z=3.7136...
X+11.1327Y+1.6094Z=4.7095 X+11.2835Y+2.3026Z=4.1109 X+11.1012Y+2.8904Z=3.7136
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X+11.1327Y+1.6094Z=4.7095 ①
X+11.2835Y+2.3026Z=4.1109 ②
X+11.1012Y+2.8904Z=3.7136③
先消去x.②-①,0.1508y+0.6932z=-0.5986,④
②-③,0.1823y-0.5878z=0.3973.⑤
④*0.5878+⑤*0.6932,得0.2150106y=-0.07644872,
y≈-0.355557912,
代入④,z≈-0.786182727,
代入①,x≈9.933102049.
∴{x≈9.933102049,
{y≈-0.355557912,
{z≈-0.786182727.
X+11.2835Y+2.3026Z=4.1109 ②
X+11.1012Y+2.8904Z=3.7136③
先消去x.②-①,0.1508y+0.6932z=-0.5986,④
②-③,0.1823y-0.5878z=0.3973.⑤
④*0.5878+⑤*0.6932,得0.2150106y=-0.07644872,
y≈-0.355557912,
代入④,z≈-0.786182727,
代入①,x≈9.933102049.
∴{x≈9.933102049,
{y≈-0.355557912,
{z≈-0.786182727.
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