That night, Klaus installed it on his clunky Pentium II. The interface was white, like a blank sheet. He typed: x^2 + 3*x - 5 = 0 . Instead of pressing “enter,” he clicked the “→” symbol. Instantly, the symbolic engine returned: x = (-3 + sqrt(29))/2 and x = (-3 - sqrt(29))/2 .
Klaus replied, “Would you ask a carpenter to cut a board with his teeth instead of a saw?” mathcad studentenversion
x^2 + y^2 = 25 x*y = 12