ответвлено от main/it-labs
задание
Этот коммит содержится в:
266
ТЕМА1/task.md
Обычный файл
266
ТЕМА1/task.md
Обычный файл
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# Общее контрольное задание по теме 1
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Иванов Артём, А-03-24
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## Задание
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- Создайте переменную ММ – матрицу 5х7 со случайными нормально распределенными элементами с математическим ожиданием 10 и стандартным отклонением 8.
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- Рассчитайте среднее значение SR по всем элементам матрицы ММ.
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- Замените в ММ все значения, превышающие SR+8, на значение SR+8, а значения, меньшие, чем SR-8, - на SR-8.
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- Превратите ММ в вектор – столбец ММС. Упорядочьте его элементы по возрастанию. Определите значение медианы, в качестве которого возьмите серединное по порядку индексов значение в упорядоченном векторе.
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- Рассчитайте матрицу ММ1 с элементами, равными натуральным логариф-мам от значений соответствующих элементов из матрицы ММ.
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## Решение
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```matlab
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>> MM=10+8*randn(5,7)
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MM =
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-0.3150 18.2714 16.3823 -0.3882 7.6231 9.4711 0.3784
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1.1265 11.5555 -0.9722 16.4186 2.9388 16.7871 14.8105
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8.8727 1.8825 5.0660 14.5294 14.5326 5.5724 9.9409
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1.0583 3.3569 13.8140 9.1158 12.5865 10.9011 4.3489
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15.5769 12.6464 -6.4921 12.9410 2.3038 9.3104 2.6408
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>> SR=sum(MM(:))/numel(MM)
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SR = 7.9598
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>> UP=SR+8
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UP = 15.960
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>> LOW=SR-8
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LOW = -0.040190
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>> MM(MM>UP)=UP;
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>> LOW(MM<LOW)=LOW;
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>> MM
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MM =
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-4.0190e-02 1.5960e+01 1.5960e+01 -4.0190e-02 7.6231e+00 9.4711e+00 3.7838e-01
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1.1265e+00 1.1556e+01 -4.0190e-02 1.5960e+01 2.9388e+00 1.5960e+01 1.4810e+01
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8.8727e+00 1.8825e+00 5.0660e+00 1.4529e+01 1.4533e+01 5.5724e+00 9.9409e+00
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1.0583e+00 3.3569e+00 1.3814e+01 9.1158e+00 1.2587e+01 1.0901e+01 4.3489e+00
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1.5577e+01 1.2646e+01 -4.0190e-02 1.2941e+01 2.3038e+00 9.3104e+00 2.6408e+00
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>> MMC=MM(:)
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MMC =
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-4.0190e-02
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1.1265e+00
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8.8727e+00
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1.0583e+00
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1.5577e+01
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1.5960e+01
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1.1556e+01
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1.8825e+00
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3.3569e+00
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1.2646e+01
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1.5960e+01
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-4.0190e-02
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5.0660e+00
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1.3814e+01
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-4.0190e-02
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-4.0190e-02
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1.5960e+01
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1.4529e+01
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9.1158e+00
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1.2941e+01
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7.6231e+00
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2.9388e+00
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1.4533e+01
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1.2587e+01
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2.3038e+00
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9.4711e+00
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1.5960e+01
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5.5724e+00
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1.0901e+01
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9.3104e+00
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3.7838e-01
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1.4810e+01
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9.9409e+00
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4.3489e+00
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2.6408e+00
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>> MMC1=sort(MMC)
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MMC1 =
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-4.0190e-02
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-4.0190e-02
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-4.0190e-02
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-4.0190e-02
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3.7838e-01
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1.0583e+00
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1.1265e+00
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1.8825e+00
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2.3038e+00
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2.6408e+00
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2.9388e+00
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3.3569e+00
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4.3489e+00
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5.0660e+00
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5.5724e+00
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7.6231e+00
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8.8727e+00
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9.1158e+00
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9.3104e+00
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9.4711e+00
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9.9409e+00
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1.0901e+01
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1.1556e+01
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1.2587e+01
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1.2646e+01
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1.2941e+01
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1.3814e+01
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1.4529e+01
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1.4533e+01
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1.4810e+01
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1.5577e+01
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1.5960e+01
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1.5960e+01
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1.5960e+01
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1.5960e+01
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>> Med=MMC1(floor(numel(MMC1)/2)+1)
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Med = 9.1158
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>> MM1=log(MM)
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MM1 =
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Columns 1 through 4:
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-3.2141 + 3.1416i 2.7701 + 0i 2.7701 + 0i -3.2141 + 3.1416i
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0.1191 + 0i 2.4472 + 0i -3.2141 + 3.1416i 2.7701 + 0i
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2.1830 + 0i 0.6326 + 0i 1.6226 + 0i 2.6762 + 0i
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0.0567 + 0i 1.2110 + 0i 2.6257 + 0i 2.2100 + 0i
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2.7458 + 0i 2.5374 + 0i -3.2141 + 3.1416i 2.5604 + 0i
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Columns 5 through 7:
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2.0312 + 0i 2.2482 + 0i -0.9719 + 0i
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1.0780 + 0i 2.7701 + 0i 2.6953 + 0i
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2.6764 + 0i 1.7178 + 0i 2.2967 + 0i
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2.5326 + 0i 2.3889 + 0i 1.4699 + 0i
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0.8346 + 0i 2.2311 + 0i 0.9711 + 0i
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```
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@@ -16,7 +16,7 @@ BRD
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BRD
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USA
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USA
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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BRD
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BRD
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USA
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@@ -79,20 +79,20 @@ BRD
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USA
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USA
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BRD
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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BRD
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Japan
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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BRD
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BRD
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USA
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@@ -110,13 +110,13 @@ USA
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USA
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USA
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BRD
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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BRD
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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Japan
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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BRD
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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USA
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USA
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USA
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@@ -124,19 +124,19 @@ USA
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Japan
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BRD
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BRD
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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Japan
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England
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BRD
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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England
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France
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Japan
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England
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BRD
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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BRD
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Japan
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Japan
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