Mathematics

The Data Science Speakers Club is a Toastmasters International club enabling the current and next generation of Data Scientists to improve their Public Speaking Skills. This is a HYBRID Meeting! So join us Online via ZOOM or In-Person. Joining the Data Science Speakers Club means joining a supportive environment to build your confidence in public speaking and to practice speaking in front of an audience. You will also gain the opportunity to receive feedback on your speeches in a friendly environment, including what you have done well and guidance on the areas you can improve upon. We also run a mentorship program where an experienced mentor supports you on your public speaking journey. Meeting Theme: **TBC** Tentative Schedule: 18:30 - President's welcome 18:40 - Prepared Speeches (3 prepared speeches with evaluation) 19:25 - Guest introduction 19:30 - Break 19:40 - Table Topic 20:30 - Wrap up, awards, announcements End of Meeting The theme is to do with exploring various aspects of power, including how it is distributed, challenged, and transformed in different contexts. In the first part, there will be speeches. In the second half, we will have impromptu speeches preparation in groups called Table topics where guests can participate. We meet on the 1st, 3rd, and 5th Mondays of each month from 6:30 pm online. Each meeting is a mixture of prepared speeches by our members, speaking roles, and impromptu speaking challenges by members and guests. Our meetings are free to attend and you only have to speak if you want to. For in-person attendance, snacks will be provided. Entrepreneurs, Innovators, and Mathematical and Logical Thinkers aiming to focus on their communication and leadership development are always welcome to attend our meetings, to increase their self-confidence, become better speakers, and become better leaders. TEAMS LINK: [https://teams.microsoft.com/meet/352477918221829?p=LtDExmS9LMipykYWTZ](https://www.google.com/url?q=https://teams.microsoft.com/meet/352477918221829?p%3DLtDExmS9LMipykYWTZ&sa=D&source=calendar&usd=2&usg=AOvVaw28YzznzuunWRGwzVhie0-x) FACEBOOK: [https://www.facebook.com/datasciencespk/](https://www.facebook.com/datasciencespk/) LINKEDIN: [https://www.linkedin.com/company/data-science-speakers-club](https://www.linkedin.com/company/data-science-speakers-club) TWITTER: [https://twitter.com/datasciencespk](https://twitter.com/datasciencespk) INSTAGRAM: [https://www.instagram.com/datasciencespk/](https://www.instagram.com/datasciencespk/)

Badminton matchplay session for players of advanced only. Session is £15 cash

The next book is Theo of Golden by Allen Levi. If you’re interested, read the book if you want to, and join us for dinner at Mountain View. The booking will be under Olivia.

Join me for a fun Drama class every Monday evening from 6:30 pm- 8:30pm at the Omnibus Theatre in Clapham Common. The class helps with confidence, developing awareness of yourself and others, connecting and to simply having fun. No experience is needed. We'll do relaxation exercises, games, improvisations, storytelling, and a bit later on we'll start working on character and text. There will be a little showcase at the end of the year. £10 pounds for the trial class to be paid before or after class. Different payment options if you decide to join. In order to reserve a place, please contact me at catherine@thebrightdaycompany.net. For more info: https://www.thebrightdaycompany.net/about I look forward to seeing you!

Welcome to SQUAD Advanced Volleyball sessions. PLEASE READ: Level: Advanced/Upper Intermediate only. (Players MUST know the 5-1 rotation system and positions and have strong all-round skills) We meet at Bacon's College Sports Centre in Canada Water for fun but competitive volleyball! Cost: £ 12 per session Maximum Capacity: 14 players. Attitude: Positive and friendly atmosphere Please NOTE: you might be asked to leave the session if your level isn't up to the standard of ADVANCED Book your place ASAP and any question please contact us here or via our Facebook page. https://www.facebook.com/S.Q.U.A.D.VC/

This is a monthly group for fathers — a space to listen and be heard. While fatherhood is something we all share, the group is not limited to talking about our children — it’s a space to talk about whatever is on your mind, with the understanding that we are all experiencing life through the lens of being a father. \-\-\-\-\- **When:** 7pm–9pm · Last Monday of each month **Where:** 10-mins walk from Old Street or Barbican stations. Full address to be shared to attendees via WhatsApp **Price:** First session free · £25/month thereafter \-\-\-\-\- **What to expect** * No need to bring anything — come as you are * A non-judgemental space — you're free to speak openly, with no pressure to share anything you’re not comfortable sharing * Small group of 7 dads (including me, Mem, your facilitator) to keep the space comfortable and focused \-\-\-\-\- Attendance is dependent on reading and agreeing to the [Ground Rules](https://docs.google.com/document/d/1K_jGrvkGZ0_8xnrd4yZ7lw4YlX0DlXL9). This is an ongoing monthly group, and new members are welcomed when space allows. With more interest, another date will be added to allow more dads to take part. If you're interested, and in order to confirm your place, please message Mem via WhatsApp on 07707 507 957 to arrange a quick call. \-\-\-\-\- *This event is advertised across multiple platforms, and so attendance displayed on Meetup does not reflect number of attendees confirmed*

⚠️ **Date Change to Monday 29th June** ⚠️ ℹ️ **Due to strong interest, we have activated the waitlist for this meetup, to prioritise Databricks customers. Please join the waitlist and we will release a ticket to you ASAP.** We're back with a post-Data + AI Summit special, hosted by our friends at **Sigma** in the City of London. **Please note that we are asking everyone to join the waitlist upfront - we will be in touch to confirm attendance.** We'll have a talk from Simon Whiteley on all of the key announcements from Data + AI Summit, followed by a demo from Sigma, who are won Databricks BI Partner of the year for the second year and provide an analytics, AI and apps layer for business users on Databricks. They are also our hosts for the evening, and have an incredible space on the 21st floor of Broadgate Tower. **17:00 - 17:45:** Arrival & Networking **17:45 - 18:00:** Opening Remarks & Introductions **18:00 - 18:45** Key DAIS announcements - Simon Whiteley **18:45 - 19:10** Sigma Talk & Demo - Chris Goodman **19:10 - 19:20** Q&A **19:20 onwards:** Pizza, Drinks & Networking *Join us for a fantastic evening of learning and networking at the London Databricks meetup, hosted this month by Sigma,*

In this session we will read aloud some of the Tractatus Logico Philosoophicus by Ludwig Wittgenstein, and discuss it. One of the most difficult books of philosophy ever written, it attempts in no more than 79 pages to set out the limits of language, knowlege and reality. Bertrand Russell described it as "an achievement of extraordinary difficulty and importance" and a work of "philosophical genius". No preparation or background knowledge required for the session. We will read together, share explanations where we can, and form our reactions. Gather in Highgate Library from 3.15, read and discuss 3.30 to 4.30. Optional socialising in the Boogaloo pub afterwards.

Join me for a fun Drama class every Wednesday evening from 6:30 pm- 8:30pm at the Omnibus Theatre in Clapham Common. Acting helps with confidence and awareness. In a fun and relaxed atmosphere, you will meet new people and learn all about Acting. No experience is needed. We'll do relaxation exercises, games, improvisations, storytelling, and a bit later on we'll start working on character and text. The year ends with an exciting Showcase where friends and family come and see how all your hard work has paid off :) £10 pounds for the trial class to be paid before or after class. Different payment options if you decide to join. In order to reserve a place, please contact me at catherine@thebrightdaycompany.net. For more info: https://www.thebrightdaycompany.net/about I look forward to seeing you!

Pitch.london is a curated speed-networking event for founders, operators and serious builders. Short, structured conversations. Sharp prompts. Real chemistry, fast. The hardest problem in early-stage entrepreneurship is finding the right people. Most events leave it to chance. We don’t. The room is curated, the prompts are clear, and the format is built for high-signal encounters between people who are actually building something. In one evening, you can meet more relevant people than you might in months of random networking. Two formats. One room. Zero fluff. **01\. Founder matchmaking pitches** Sixty seconds to share who you are, what you’re building, and what would actually help right now. Whatever you’re looking for, the room is built to help you find it: people to build with, people to hire or be hired by, advisors and investors, or honest feedback on what you’re shipping. **02\. Group brainstorms** Small, time-boxed groups tackle a real challenge brought into the room. Bring a live problem you’re stuck on. Get five minds on it for ten minutes. Leave with new angles and next steps. **This room is for you if you’re:** * A founder seeking a co-founder * A founder seeking a first hire * An operator looking for a serious team to join * A technical builder open to commercial partners * A commercial builder open to technical partners * A second-time founder scoping the next thing * An angel investor close to the early-stage scene It’s probably not for you if you’re hunting for clients, selling services, or still working out what you’re looking for. **Run of show** * 17:30 to 18:00 Doors, drinks, soft start * 18:00 to 18:05 Welcome and the rules of the room * 18:05 to 18:35 Speed pitches: Round 1 * 18:35 to 19:15 Group brainstorms * 19:15 to 19:45 Speed pitches: Round 2 * 19:45 to 20:00 Open networking, then drinks at the citizenM Skybar **What’s included** Your £25 covers your seat in the room and a drink at the citizenM Skybar after the programme. **First 30 in get a seat**

Lets have a get together mid week.... We used to have a successful meetup here on Tuesdays so I am going to give it another whirl and see how it goes As you know this is a Wetherspoons so good prices!!!! Conveniently situated 2 mins walk from Elizabeth line, Hammersmith & City, Metropolitan, Circle Line and Thameslink Come along and joins us, as I say the more the merrier.. PLEASE CAN YOU SIGN UP IF ATTENDING

Looking for a Sunday that feels like a soft slice of summer? Join us for a beautiful 12–15 km loop through the Darent Valley, where riverside paths, rolling green fields, and blooming lavender come together in one of Kent's most charming landscapes. This valley has been shaped by centuries of life and travel, and you feel it as soon as you step onto the trail. We'll pass beneath the towering arches of the Eynsford Viaduct, a Victorian engineering landmark that has carried trains across the valley since the 1860s. Further along, the route brushes past the historic grounds of Lullingstone Castle, a Tudor manor once visited by Henry VIII and home to the Hart Dyke family for over 500 years. From there, the path opens into the quiet lanes of Shoreham village and the purple shimmer of the lavender fields drifting across the hillsides. As we move through meadows, woodlands, and open countryside, the day settles into that easy summer rhythm where everything feels unhurried and lightly golden. It's the kind of walk where the scenery does the talking: the river winding beside us, the scent of lavender in the warm air, and the countryside unfolding in soft greens and purples — a Sunday that feels sun-warmed, peaceful, and just a little bit dreamy. We will head to a pub near the station when we finish for a pint or/and lunch. ## 📅 **Event Details** **Meeting Point:** Eynsford Station (Start / Finish) **Meeting Time:** 10:15 AM for 10:30 AM sharp start. **Distance:** approx. 12 to 15 km **Elevation:** \~300 m approx **Difficulty:** Moderate **Pace:** Steady **Estimated Finish:** Around 2 PM ## 🌿 **Route Highlights** * **Eynsford Viaduct Viewpoint** — one of Kent’s most photogenic spots, especially in summer light. * **Ancient woodland paths** around Ashen Bank, offering shade and cool forest air. * **Shoreham Village** — postcard‑perfect with its stone bridge and riverside charm. * **Darent Valley Path** — peaceful riverside walking with open fields and gentle breezes. * **Shoreham Lavender Fields** — with sweeping purple rows and great photo opportunities. * **Lullingstone Country Park** and **Castle** — meadows, woodlands, and a relaxed finish back toward Eynsford. This is a circular route full of **colour, greenery, and soft summer atmosphere** — the kind of day that feels wrapped in the easy warmth of summer countryside. ## 🎒 **What to Bring** * Comfortable hiking boots or sturdy shoes * At least **2L of water** * Packed snacks * Sun protection (hat, sunglasses, sunscreen) * Light layers — summer can still surprise * Good vibes and your best Sunday‑summer energy ## 📌 **Important Notes** * **Stay Together:** Please stay with or behind the hike leader to keep the group moving smoothly and regular catch ups. * **Respect the Area:** Parts of the route pass through the **Kent Downs National Landscape** — please respect wildlife, fields, and local guidelines. * **Group Rules:** Please read the “About Us” section before joining: [https://www.meetup.com/free-hiking-outdoor-fitness-and-social-activities](https://www.meetup.com/free-hiking-outdoor-fitness-and-social-activities?utm_source=copilot.com%20%22www.meetup.com%22) * **Safety:** This is a voluntary activity. You are responsible for your own safety and for respecting fellow walkers, wildlife, and the environment. No risk or service is inferred or accepted by the organiser. 📱 **If you’re lost or running late:** 07830 374 629

Fun and experienced doubles badminton! We play over four courts each Tuesday, bring your own kit and racket. £9.00per person for 2hrs; quarterly payments should be discussed with Eli is desired. if less than 24 notice is given for a cancellation then the session fee will have to be paid. we need this so other people on the waiting list can attend. We play with plastic shuttle on most courts; feather available as advance request. Important note: Our club is paid for by individuals; as such your attendance and payment is required when making a commitments to play - as a matter of respect, please ensure that you consider this when saying you will attend. If you desire a PayPal link to make a payment please contact the Hosts first (these are personal payments). Please ensure you tell the host via the app, when any payment been made.

Join us as we get together for a CAPA Summer Movie event to see the romantic, funny, heartwarming, feel-good classic, PRETTY WOMAN! Julia Roberts and Richard Gere star in this modern-day fairy-tale romance! Here’s a description, trailer and plan for this event: DESCRIPTION: A wealthy corporate raider hires a Hollywood escort as his date for a week of high-society business events. But what starts as a business transaction blossoms into genuine love, challenging both of their lives and leading to an unexpected romance. The film is directed by Garry Marshall and stars Richard Gere, Julia Roberts, Héctor Elizondo, Ralph Bellamy (in his final performance), Laura San Giacomo and Jason Alexander. MINI TRAILER: [https://www.youtube.com/watch?v=K-JghOdhAwc](https://www.youtube.com/watch?v=K-JghOdhAwc) SHORT BONUS CLIP #1 - DIRECTOR GARRY MARSHALL Recalls Famous Scenes from the Film: [https://www.youtube.com/watch?v=HpIMOzieGPs](https://www.youtube.com/watch?v=HpIMOzieGPs) SHORT BONUS CLIP #2 - RICHARD GERE on the Film’s Impact all these years later: [https://www.youtube.com/watch?v=O0T3O94dAA8](https://www.youtube.com/watch?v=O0T3O94dAA8) SHORT BONUS CLIP #3 - JULIA ROBERTS Remembers a Gift from Director Garry Marshall: [https://www.youtube.com/watch?v=pJ4AZSjbMsA](https://www.youtube.com/watch?v=pJ4AZSjbMsA) BUZZ & ACCLAIM: A huge box office hit at the time of its release, PRETTY WOMAN has since gone on to become a modern-day classic! The film catapulted Julia Roberts to superstardom and earned her a Golden Globe for Best Actress and her first Oscar nomination! Critics praise Julia Roberts’ star-making performance, the undeniable chemistry between her and Richard Gere, and its warm, funny feel-good story about kindness, self-worth and transformation! The film’s “intelligence and wit,” “first-class performances” and “sharp, funny script” have made Pretty Woman a classic and truly “something special!” THE OHIO THEATRE: The Ohio Theatre is located at 39 E. State Street, between 3rd and High Streets, across the street from the Ohio Statehouse. From classical music to modern dance, yearly family traditions to hot concerts, the world’s best artists come to the 2,791-seat, historic Ohio Theatre. The breathtaking details (including the 21-foot-high chandelier!) of its opulent, Spanish-Baroque architecture make any night at the Ohio Theater an event to remember! PRE-SHOW ENTERTAINMENT: Now celebrating his 33rd year as featured organist for the CAPA Summer Movie Series, Clark Wilson will again provide pre-show entertainment at the keyboards and controls of the Ohio Theatre’s treasured “Mighty Morton” theatre organ 30 minutes prior to each screening. PARKING: Parking is available at Columbus Commons Parking Garage off 3rd or Rich Streets or in Statehouse Parking Garage off 3rd Street. You can find out more about parking in Downtown Columbus by visiting the Downtown Columbus website. PLAN: Purchase your ticket for the 7:30pm showing and we’ll meet outside the theater between 6:50 and 7:00pm. We’ll head in at 7pm to get good seats and enjoy the pre-show organ music! TICKETS: Tickets just $6 adult / $5 senior! Parking is available under the Capital building, in the nearby garage, or on the nearby streets. You can purchase your ticket at the box office on the day of the event or online here: [https://www.capa.com/capa-summer-movie-series/](https://www.capa.com/capa-summer-movie-series/) Look forward to seeing you there, Dan

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant.

Most people use LLMs by feel: ask a question, read the answer, decide whether it “seems good,” and move on. That works for casual use. It does not work when you are building software, automating workflows, writing important documents, or relying on AI for anything that needs to be repeatable. In this talk, we’ll look at how to improve and evaluate the inputs and outputs of LLMs using practical measurement techniques. We’ll cover how prompt changes affect results, how to compare outputs, how to build simple evaluation sets, and how math-based methods like similarity scoring can help you move beyond guesswork. This will be beginner-friendly, so even if you don't know anything about AI, you should get something out of it. However, this will be a little more technical than our intro talks. You do not need to be an AI researcher, but programmers and technically curious attendees will get a lot out of it. We’ll cover: * Why “it looks good” is not enough * How to improve prompts by changing the input, context, and constraints * How to compare LLM outputs more systematically * Basic evaluation techniques for accuracy, consistency, and usefulness * How embeddings, cosine similarity, and scoring can help evaluate results * Where automated evaluation works — and where humans still need to stay in the loop By the end, you’ll have a practical mental model for treating LLMs less like magic and more like systems you can test, measure, and improve. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.

**✅ Bachata Mondays with Todd Smith!** **👉 Beginner Bachata Class** **$15 In Advance / $20 At the Door** . 7:00 pm – 7:15 pm … Registration 7:15 pm – 8:15 pm … Beginner Class . **👉 Intermediate Bachata Class** **= $15 In Advance / $20 At the Door** . 8:15 pm – 8:30 pm Registration 8:30 pm – 9:30 pm Intermediate Class . **👉 If You Take Both Bachata Classes** **= $25 In Advance / $35 At the Door** . **👉 Buy Advance Tickets Now at:** . https://columbussalsadancing.com/bachata-mondays-dance-class-tickets/

Wild Thursday: THE INVITE on Thursday, July 9th at Cinemark Polaris! Join us as we get together to see the spicy and hilarious comedy-drama-romance from A24, THE INVITE! The film stars Olivia Wilde (who also directs) along with Seth Rogen, Penélope Cruz and Edward Norton, and follows a dinner party that spirals into unexpected places! Here’s a description, trailer and plan for this event: DESCRIPTION: Joe and Angela's marriage is on thin ice. When they invite their enigmatic upstairs neighbors for a dinner party, the night spirals into unexpected places. The film is an English language remake of the Spanish film The People Upstairs by Cesc Gay. It is directed by Olivia Wilde, who also stars alongside Seth Rogen, Penélope Cruz and Edward Norton. BUZZ & ACCLAIM: The Invite premiered to rave reviews at this year’s Sundance Film Festival and sparked an immediate bidding war to acquire it! The film is earning a 93% positive rating with critics calling it, “marvelously entertaining” and “endlessly relatable, sometimes uncomfortably so!” Others call it, “a smart, sophisticated and incisively acted” comedy “with plenty to say and even more laughs to share.” TRAILER: [https://www.youtube.com/watch?v=OJ19I9q_hOQ](https://www.youtube.com/watch?v=OJ19I9q_hOQ) PLAN: Details for this event have already been confirmed! Please purchase your ticket for the 6:45pm showing and we’ll meet in the lobby area between 6:20 and 6:30pm! Advance ticket purchase is advised! Once you have yours, please list your seat number in the Comments below. Look forward to seeing you there, Dan

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd