Hi everyone,

Your overall grade (out of 20 possible) for the numerical methods project has been posted under Dashboard/OpenLab Gradebook.  The scoring guide that I used to assess your work is given below.  If you’d like more details about your score, please send me an email or ask me after class.

Regards,
Prof. Reitz

## SCORING GUIDE

#### WRITTEN ASSIGNMENT – OpenLab (5 points total):

• 1 point – 300 words minimum
• 2 points – Describe project & how it works, Describe process of building it (what tech did you use/why? Unexpected challenges?)
• 1 point – Why do we need numerical methods?  Why is this assignment included in the class?
• 1 point – include link or state you will send by email

#### IMPLEMENTATION (15 points total):

##### 3 points: General setup
• 2 points – Correct differential equation: dy/dx = x^2/(y-1)
• 1 point – Correct initial condition y(-1)= -0.5
##### 4 points: Euler’s Method
• 2 points – functioning solution, displays x,y,f(x,y) at each stage
• 1 point – correct x-target value
• 1 point – four digits of accuracy after decimal:  y(2)=-1.87228… (will accept -1.8722 or -1.8723), optimum # of steps 11795
##### 4 points: Improved Euler’s Method
• 2 points – functioning solution, displays x,y,k1,k2 at each stage
• 1 point – correct x-target value
• 1 point – four digits of accuracy after decimal:  y(2)=-1.87228… (will accept -1.8722 or -1.8723), optimum # of steps 291
##### 4 points: Runge-Kutta Method
• 2 points – functioning solution, displays x,y,k1,k2,k3,k4 at each stage
• 1 point – correct x-target value
• 1 point – four digits of accuracy after decimal:  y(2)=-1.87228… (will accept -1.8722 or -1.8723), optimum # of steps 12