解 線性代數
0.52 x1 + 0.82 x2 = 0.0143
1.52 x1 - 1.82 x2 = 0.0005
==============================
| 0.52 0.82 | | x1 | = 0.0143
| 1.52 -1.82 | | x2 | = 0.0005
設定矩陣
Matrix dimension: X
Set Matrix
答案畫面:
Your matrix
X1 | X2 | b | |
---|---|---|---|
1 | 0.52 | 0.82 | -0.0143 |
2 | 1.52 | -1.82 | -0.0005 |
Make the pivot in the 1st column by dividing the 1st row by 0.52
X1 | X2 | b | |
---|---|---|---|
1 | 1 | 1.576923076923076923 | -0.0275 |
2 | 1.52 | -1.82 | -0.0005 |
Multiply the 1st row by 1.52
X1 | X2 | b | |
---|---|---|---|
1 | 1.52 | 2.3969230769230769229 | -0.0418 |
2 | 1.52 | -1.82 | -0.0005 |
Subtract the 1st row from the 2nd row and restore it
X1 | X2 | b | |
---|---|---|---|
1 | 1 | 1.576923076923076923 | -0.0275 |
2 | 0 | -4.2169230769230769229 | 0.0413 |
Make the pivot in the 2nd column by dividing the 2nd row by -4.2169230769230769229
X1 | X2 | b | |
---|---|---|---|
1 | 1 | 1.576923076923076923 | -0.0275 |
2 | 0 | 1 | -0.0097938708500547245534 |
Multiply the 2nd row by 1.576923076923076923
X1 | X2 | b | |
---|---|---|---|
1 | 1 | 1.576923076923076923 | -0.0275 |
2 | 0 | 1.576923076923076923 | -0.015444180955855527179 |
Subtract the 2nd row from the 1st row and restore it
X1 | X2 | b | |
---|---|---|---|
1 | 1 | 0 | -0.012055819044144472821 |
2 | 0 | 1 | -0.0097938708500547245534 |
Solution set:
x1 = -0.012055819044144472821
x2 = -0.0097938708500547245534
另一解
Your matrix
X1 | X2 | b | |
---|---|---|---|
1 | 0.544112 | 0.839588 | 0.0002415 |
2 | 1.544112 | -1.83959 | 0.0000495 |
Make the pivot in the 1st column by dividing the 1st row by 0.544112
X1 | X2 | b | |
---|---|---|---|
1 | 1 | 1.5430426088746434557 | 0.00044384244420266415737 |
2 | 1.544112 | -1.83959 | 0.0000495 |
Multiply the 1st row by 1.544112
X1 | X2 | b | |
---|---|---|---|
1 | 1.544112 | 2.3826306088746434556 | 0.00068534244420266415736 |
2 | 1.544112 | -1.83959 | 0.0000495 |
Subtract the 1st row from the 2nd row and restore it
X1 | X2 | b | |
---|---|---|---|
1 | 1 | 1.5430426088746434557 | 0.00044384244420266415737 |
2 | 0 | -4.2222206088746434556 | -0.00063584244420266415736 |
Make the pivot in the 2nd column by dividing the 2nd row by -4.2222206088746434556
X1 | X2 | b | |
---|---|---|---|
1 | 1 | 1.5430426088746434557 | 0.00044384244420266415737 |
2 | 0 | 1 | 0.00015059432064402159735 |
Multiply the 2nd row by 1.5430426088746434557
X1 | X2 | b | |
---|---|---|---|
1 | 1 | 1.5430426088746434557 | 0.00044384244420266415737 |
2 | 0 | 1.5430426088746434557 | 0.0002323734534082556622 |
Subtract the 2nd row from the 1st row and restore it
X1 | X2 | b | |
---|---|---|---|
1 | 1 | 0 | 0.00021146899079440849517 |
2 | 0 | 1 | 0.00015059432064402159735 |
Solution set:
x1 = 0.00021146899079440849517
x2 = 0.00015059432064402159735
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