Bill Foster
Member of the e-learning unit. Retiring at the end of September 2016.
Bill's activity
Bill Foster commented on The distance between two complex numbers 6 years ago
There is a tolerance of 0,001 for the answers which is very generous as the student should get the square root of a number to 3 dps exactly.
The question is ready for use if this is allowed.
Bill Foster on Taylor series (three terms) 6 years ago
Gave some feedback: Ready to use
Bill Foster on Transform second order ODE into 2D and 3D dynamical systems 6 years ago
Gave some feedback: Has some problems
Bill Foster commented on Transform second order ODE into 2D and 3D dynamical systems 6 years ago
The expression \[\simplify[std]{ddot:x+{a1}*dot:x+{b1}*sin(x)+{c1}*t^{n1}}=0,\] in the statement when run results in a multiple of ddot:x and no dot:x.
Bill Foster on Substitute a value into an expression 6 years ago
Gave some feedback: Ready to use
Bill Foster on Solving equations 6 years ago
Gave some feedback: Ready to use
Bill Foster on Solving equations 6 years ago
Gave some feedback: Has some problems
Bill Foster commented on Solving equations 6 years ago
Error message Could not submit answer-check for errors on inputting answers.
Bill Foster on Solving equations 6 years ago
Gave some feedback: Has some problems
Bill Foster commented on Solving equations 6 years ago
Error message Could not submit answer-check for errors on submitting answers.