1. 7.4D-Calculator for Row Operations

2. Row operations Make an augmented matrix out of 2 matrices 7: augment(NAME, NAME) Switch 2 rows C: rowSwap (NAME, first row, second row) Add 2 rows (already opposites) D: row+(NAME, first row, second row) Multiply a row by a number E: *row(# mult. by, NAME, row) Multiply a row by a number & add to another F: *row+ (# mult. by, NAME, row mult., row added to)

3. More Row Operations Put in ROW ECHELON Form A: ref(NAME) Put in REDUCED ROW ECHELON Form B: rref(NAME) HELPFUL if entire system entered as non- square system before finding ref or rref.

4. Applications (Use calc)

5. Application