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2013-04-04 18:39:05 +0200 | answered a question | Complex Matrices Hey marios--- I actually found a nice (but bit unwieldy) way to do one of the things I wanted, which was to compute Probabilities from inner products for an undergrad course in Quantum Mechanics. For example, a spin-up particle might be represented with the vector (1, 0); spin down with (0, 1). For my assignment I was working with 3-vectors with complex entries (such as 1 / sqrt(2) * (1, 0, i)), and I wished the general matrix commands could be used to make a table of probabilities quickly. Instead I resorted to implementing a definition formula with the complex sum and product commands. But similarly, I would like to make a matrix multiplication table, listing all 27 combinations Ax, where the A are matrices such as (0, 0, 0; i, 0, 0; 0, 0, 1) and x vectors such as (1, 0, i). Thanks--- |

2013-03-25 04:24:01 +0200 | asked a question | Complex Matrices Hey All--- I know that this is easy to do with, e.g., Octave or Sage, but I had wanted to compute some operator equations and was surprised not to find a way to deal with complex matrices in Calc. Even sumproduct does not work for complex entries. Is there any remedy for this? |

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