rowMult -- multiply a row by a ring element

• Usage:

  rowMult(m,i,a)

• Inputs:
  • m, a mutable matrix
  • i, an integer
  • a, a ring element, in the same ring as m
• Consequences:

  • The i th row of m is modified by multiplying it by a

i1 : R = ZZ[a..f];

i2 : m = mutableMatrix genericMatrix(R,a,2,3)

o2 = | a c e |
     | b d f |

o2 : MutableMatrix

i3 : rowMult(m,0,c)

o3 = | ac c2 ce |
     | b  d  f  |

o3 : MutableMatrix

i4 : m

o4 = | ac c2 ce |
     | b  d  f  |

o4 : MutableMatrix