Adding, scaling, multiplying and transposing matrices
Add and subtract matrices of the same order, multiply by a scalar, multiply row by column, and turn rows into columns.
- فلسطين: الصف ١١
- إيران: الصف ١٢
- أفغانستان: الصف ١١
- فرنسا: الصف ١٢
- بريطانيا: السنة ١٢
لم يُترجَم هذا المختبر إلى هذه اللغة بعد.
الدليل
To add or subtract two matrices, they must have the same order. Add the entries in the same places: the top left with the top left, and so on.
To multiply a matrix by a عدد حقيقي (a number), multiply every entry by it, not just one.
To multiply two matrices, take a row of the first and a column of the second: multiply the entries in pairs and add them. The result goes in that row and that column. It is not an entry-by-entry product, and AB is usually not BA.
The منقول المصفوفة Aᵀ has the rows of A as its columns. A matrix of order ٢×٣ becomes ٣×٢. Ask your child to say the rule in their own words before they type.