> The TI-86 gives 2*10^-9 or 2E-9. The answer should be .002. I get the > right answer if I type 6E-6/3E-3. Which is useless since I need to be > using a variable for my program. It is because the calculator is parsing the equation to ((6*U)÷3)*m (where the parenthesis indicate each operation in order). The calculator is multiplying by m instead of dividing. Place the denominator in parenthesis. "6U/(3m)"