I like how in Sage it is so easy to emphasize for students what an equation is.
An equation (or inequality) is a relation between expressions: f(x) == g(x). It's then very easy to show a solution process step by step. However, I just noticed this: sage: f(x) = 2*x + 5 sage: g(x) = 5*x - 3 sage: f > g x |--> 2*x + 5 > 5*x - 3 sage: sage: _ - 5 x |--> 2*x > 5*x - 8 sage: sage: _ - 5*x x |--> -3*x > -8 sage: sage: _ / -3 x |--> x > (8/3) The '>' should be '<'. However, some good news: sage: h = f>g sage: sage: h x |--> 2*x + 5 > 5*x - 3 sage: sage: solve(h, x) [[x < (8/3)]] - Michel -- You received this message because you are subscribed to the Google Groups "sage-edu" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sage-edu?hl=en.
