--- title: Eboard 28 Vectors number: 28 section: eboards held: 2019-04-12 link: true --- CSC 151 2019S, Class 28: Vectors ================================= _Overview_ * Preliminaries * Notes and news * Upcoming work * Extra credit * Friday PSA * Questions * Quiz * Lab Preliminaries ------------- ### News / Etc. * Mentor sessions Wednesday 8-9 p.m., Thursday 8-9 p.m., Sunday 5-6 p.m. * The giant laurel leaf was depressing, at best. **Thank you** to those of you who came and tried to contribute. * Thanks for the good questions on the homework. I'll work on refining it. * Welcome to [Anonymous], our prospective student * Folks should think about taking CSC 161 in the fall. It's a great class, and you get to work with robots! ### Upcoming work * [Homework 8](../assignments/assignment08) due Tuesday. * Friday's quiz: Pairs, Vectors * NO Reading for Monday: * Flash cards Wednesday: Pairs, Vectors * Lab writeup: Exercise 5 ### Extra Credit _I would certainly appreciate suggestions of other extra credit activities (preferably via email)._ #### Extra credit (Academic/Artistic) * The Magic Flute, April 18, 7:00 p.m. Sebring-Lewis * Are Robots Taking Over Our Jobs? 4:15 p.m. HSSC S3325 - Large Lecture * On that note, please consider taking CSC 161 in the fall, you get to work with robots. #### Extra credit (Peer) * Track and Field at Mount Mercy this coming weekend. * Women's Golf at Illinois Wesleyan this coming weekend. * Women's Water Polo, Saturday, at 4:00ish in the Osgood. * Drag Show Saturday! #### Extra credit (Wellness) * TODAY, 4-6pm: Make fidgets. Maker lab, 927 Broad street. For more information or accommodation, contact [bernalma] or [phamanht] * Monday, April 15, 7:30 p.m., Harris Cinema: From the Munchies to Memory Effects: What the Science Says About Cannabis/Marijuana #### Extra credit (Wellness, Regular) * 30 Minutes of Mindfulness at SHACS (SHAW) every Monday 4:15-4:45 * Any organized exercise. (See previous eboards for a list.) * 60 minutes of some solitary self-care activities that are unrelated to academics or work. Your email reflection must explain how the activity contributed to your wellness. * 60 minutes of some shared self-care activity with friends. Your email reflection must explain how the activity contributed to your wellness. #### Extra credit (Misc) * Participate in Kinetic Sculpture Competition: Saturday the 27th * * You'll need to build your sculpture in advance. * You get reimbursed for up to $200 in supplies, but must present to be reimbursed. * Info session on KSC TODAY at 7pm at MLab. * Between 4th and 5th on Broad, on the West side of the street, between Jensen Optometrists and the Bike Store. * Public speaking workshop - April 22 at 7pm in HSSC S3325, with Kathy Clemons-Beasley '05. "Kathy is the Global head of Leadership and Manager Development for Blackrock and has been the speaker coach for TEDxGC." * Harold Green "Clean House" Friday at 6:00 in BCC. * Clothing donation boxes in lounges. Donate! ### Other good things ### Friday PSA * I care about you, take care of yourselves. ### Questions Can we rely on Sam's solution to a previous assignment in remove-duplicates? > Sure. Just cite. Sam's solution assumes sorted, so you'll have to sort first. Can we use the built-in remove-duplicates? > No. Write your own. Can we use `member` or `member?`? > Yes. You can also use the `contains` you wrote on a recent assignment (be sure to cite yourself and your partner). Quiz ---- Lab --- Replace `(increment ...)` by `(+ 1 ...)`. Writeup: Exercise 5 Learning outcomes * Because vectors are mutable, it's important to think about what else may refer to the same vector. How do we recurse through vectors? ```drracket (define fun (lambda (vec) (let kernel ([pos 0]) (if (>= pos (vector-length vec)) BASE-CASE (COMBINE (vector-ref vec pos) (kernel (+ pos 1))))))) ```