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6 computers & electronics teachers in Douala

Trusted teacher: Digital suites courses I - General A numeric sequence is an application from N to R. • Bounded sequence A sequence (Un) is bounded if there exists a real A such that, for all n, Un ≤ A. We say that A is an upper bound of the series. A sequence (Un) is reduced if there exists a real number B such that, for all n, B ≤ one. One says that B is a lower bound of the sequence. A sequence is said to be bounded if it is both increased and reduced, that is to say if it exists M such that | Un | ≤ M for all n. • Convergent suite The sequence (Un) is convergent towards l ∈ R if: ∀ε> 0 ∃n0 ∈ N ∀n ≥ n0 | un − l | ≤ ε. A sequence which is not convergent is said to be divergent. When it exists, the limit of a sequence is unique. The deletion of a finite number of terms does not modify the nature of the sequence, nor its possible limit. Any convergent sequence is bounded. An unbounded sequence cannot therefore be convergent. • Infinite limits We say that the following (un) diverges Towards + ∞ if: ∀A> 0 ∃n0∈N ∀n ≥ n0 Un≥A Towards −∞ if: ∀A> 0 ∃n0∈N ∀n≤ n0 Un≤A. • Known limitations For k> 1, α> 0, β> 0 II Operations on suites • Algebraic operations If (un) and (vn) converge towards l and l ', then the sequences (un + vn), (λun) and (unvn) respectively converge towards l + l', ll and ll '. If (un) tends to 0 and if (vn) is bounded, then the sequence (unvn) tends to 0. • Order relation If (un) and (vn) are convergent sequences such that we have a ≤ vn for n≥n0, then we have: Attention, no analogous theorem for strict inequalities. • Framing theorem If, from a certain rank, un ≤xn≤ vn and if (un) and (vn) converge towards the same limit l, then the sequence (xn) is convergent towards l. III monotonous suites • Definitions The sequence (un) is increasing if un + 1≥un for all n; decreasing if un + 1≤un for all n; stationary if un + 1 = one for all n. • Convergence Any sequence of increasing and increasing reals converges. Any decreasing and underestimating sequence of reals converges. If a sequence is increasing and not bounded, it diverges towards + ∞. • Adjacent suites The sequences (un) and (vn) are adjacent if: (a) is increasing; (vn) is decreasing; If two sequences are adjacent, they converge and have the same limit. If (un) increasing, (vn) decreasing and un≤vn for all n, then they converge to l1 and l2. It remains to show that l1 = l2 so that they are adjacent. IV Extracted suites • Definition and properties - The sequence (vn) is said to be extracted from the sequence (un) if there exists a map φ of N in N, strictly increasing, such that vn = uφ (n). We also say that (vn) is a subsequence of (un). - If (un) converges to l, any subsequence also converges to l. If sequences extracted from (un) all converge to the same limit l, we can conclude that (un) converges to l if all un is a term of one of the extracted sequences studied. For example, if (u2n) and (u2n + 1) converge to l, then (un) converges to l. • Bolzano-Weierstrass theorem From any bounded sequence of reals, we can extract a convergent subsequence. V Suites de Cauchy • Definition A sequence (un) is Cauchy if, for any positive ε, there exists a natural integer n0 for which, whatever the integers p and q greater than or equal to n0, we have | up − uq | <ε. Be careful, p and q are not related. • Property A sequence of real numbers, or of complexes, converges if, and only if, it is Cauchy SPECIAL SUITES I Arithmetic and geometric sequences • Arithmetic sequences A sequence (un) is arithmetic of reason r if: ∀ n∈N un + 1 = un + r General term: un = u0 + nr. Sum of the first n terms: • Geometric sequences A sequence (un) is geometric of reason q ≠ 0 if: ∀ n∈N un + 1 = qun. General term: un = u0qn Sum of the first n terms: II Recurring suites • Linear recurrent sequences of order 2: - Such a sequence is determined by a relation of the type: (1) ∀ n∈N aUn + 2 + bUn + 1 + cUn = 0 with a ≠ 0 and c ≠ 0 and knowledge of the first two terms u0 and u1. The set of real sequences which satisfy the relation (1) is a vector space of dimension 2. We seek a basis by solving the characteristic equation: ar2 + br + c = 0 (E) - Complex cases a, b, c If ∆ ≠ 0, (E) has two distinct roots r1 and r2. Any sequence satisfying (1) is then like : where K1 and K2 are constants which we then express as a function of u0 and u1. If ∆ = 0, (E) has a double root r0 = (- b) / 2a. Any sequence satisfying (1) is then type: - Case a, b, c real If ∆> 0 or ∆ = 0, the form of the solutions is not modified. If ∆ <0, (E) has two conjugate complex roots r1 = α + iβ and r2 = α − iβ that we write in trigonometric form r1 = ρeiθ and r2 = ρe-iθ Any sequence satisfying (1) is then of the type: • Recurrent sequences un + 1 = f (un) - To study such a sequence, we first determine an interval I containing all the following values. - Possible limit If (un) converges to l and if f is continuous to l, then f (l) = l. - Increasing case f If f is increasing over I, then the sequence (un) is monotonic. The comparison of u0 and u1 makes it possible to know if it is increasing or decreasing. - Decreasing case f If f is decreasing over I, then the sequences (u2n) and (u2n + 1) are monotonic and of contrary Made by LEON
Math · Physics · Computer science
Meet even more great teachers. Try online lessons with the following real-time online teachers:
Computer science
Trusted teacher: Don't settle for anything less than excellence. I am an Aerospace Engineer with a Master's degree in Quantum Physics and have completed Ph.D. work at the University of Cambridge in Computational Physics. Additionally, I have 4 years of experience developing MATLAB and possess deep programming skills in MATLAB/Simulink family, C/C++, Fortran, and Python. With over 12 years of tutoring experience, I have successfully guided more than 50 students worldwide to achieve distinction in various fields. Consistent results are my priority, and I strive for excellence in all aspects of my teaching. My lessons are customized to meet each student's unique needs and are designed to be engaging and insightful. Whether you are at a school level or require advanced or professional-level instruction, I offer support in the following areas: - University levels (undergraduate and postgraduate). - Preparation for IB/IA, A-Levels, GCSE, University Entry, or equivalent. - Experience in preparing students to access world-class schools and universities, including Cambridge University, Oxford and other top institutions in the UK and US. - Assistance with specific projects at a professional level, including job interview preparation. - High school studies and diploma programs. - Extensive experience working with children. Every lesson is meticulously planned in advance to ensure that it aligns with your goals and targets areas for improvement. I prioritize a dynamic and interactive learning experience, with one-on-one sessions tailored to your individual requirements. Lessons will be conducted via webcam, enabling you to connect from anywhere. I have a highly flexible schedule and can adapt to accommodate your needs. If you have any questions about my teaching method, availability, or pricing, please don't hesitate to reach out. I am here to assist you and provide the support you need.
Physics · Computer programming · Math
Electrical circuits · Automata
Trusted teacher: How to prepare for a media interview? What means should be used to fight his fear of the camera and improve his image? How to present yourself and your project in front of a camera? How to present yourself and your project to the media? Targeted content according to your project: Verbal and / or gestural communication; Seduction of the lens and / or microphone; Improvisation in front of a microphone and / or a camera; Voice & gaze; Games of one or two cameras; Chronic; Animation; Reportage; Direct radio & TV; Interview; Narration; Speech in all its forms (...) In short, several objectives: ◾ Confront your shyness in front of the microphone / camera. ◾ Understand his speech and his diction. ◾ Taming the media environment (radio / tv). ◾ Familiarize yourself with your image and voice. ◾ Manage your speaking time. Through exercises (diction, voice, presence, breathing, presentations, time management, etc.), role plays, interview simulations and familiarization with one's image and voice, the participants move at their own pace in a flexible educational framework. Note that during the videoconference session, all the notes are transcribed in the chat so that you can access them at any time when you wish. Indeed, speaking is a predominantly physical activity, which, while taking care of its image, is based on a body, a voice, a breath, a rhythm (diction) and an emotion (the imagination and the sensations ) reflecting the speaker's involvement in his speech. How to send a clear message? How to make the difference, to make an impression? Knowing how to speak, act and interact in public is almost a necessity today: your public speaking must be effective and efficient with clear, simple and powerful messages. Simple and pragmatic tools will be presented for: generating listening ● making an impression ● fostering confidence ● generating need ● motivating teams by explaining a strategy ● getting messages across within groups ● overcoming shyness by assimilating 3 CRV axes (body-breathing-voice) ● better manage disagreement or conflict. Mastered, the method allows: • improve self-confidence and stress management with the development of the speaker's fluency (verbal-bodily), his public speaking and his sense of repartee and improvisation. • to work on their ease, leadership, charisma, creativity and personal development through scenarios. * improve the characteristics of the spoken voice (timbre, pitches, intention, flow). * get your message across through your image, while gaining improvisation skills and responsiveness. Supplemented by basic exercises (diction, voice, presence, breathing, presentation, time management), role plays, improvisations and simulations. With the key word: pronunciation, diction / articulation, the sense of repartee. Statistically, the progression following these private sessions is quickly noticeable, from 2 sessions. ( study 2020). Trained in Grande Ecole post-preparatory classes & Ivy League university in the United States, specialized and has worked for more than 15 years, in Europe and North America, in the field of communication and public speaking, in renowned international public and private establishments, intervening in forums and conferences, and oriented on pedagogy and careful methodology. - Locations: Geneva - Lausanne - Friborg - Neuchâtel - Montreux - Basel - Sion - Sierre - Morges - Bienne. But currently and until further notice, only by videoconference in accordance with national recommendations on Covid. These sessions also seem to be perfectly unanimous since they have the advantages of live (example: quality of the interaction), without its disadvantages (example: loss of travel time), with additional advantages (example: of notes on the chat, which can be reread afterwards). In this context, these videoconference sessions for which you have requested me, seem to suit everyone perfectly, take place in a very optimal way and generate a certain enthusiasm (and a certain enthusiasm). That is why, at your request, I continue to offer this option. Take good care of yourself and yours! PROGRAM À la carte program: evaluated and adapted to each need.
Social media · Broadcasting · Media arts
Trusted teacher: For many years, I have successfully supported Swiss students in the fields of statistics, data analytics, machine learning, and artificial intelligence. I have gained extensive experience using R as a statistical programming tool and know exactly what students in Switzerland are required to do. I have numerous sample projects, datasets, and exam questions at my disposal and have prepared many students for their assignments and exams in a targeted, sustainable, and highly successful manner. My focus is on explaining complex statistical procedures, algorithms, and data analyses in an understandable way, demonstrating them in a practical way, and building confidence in the secure handling of data. My goal is not only to improve grades, but also, in the long term, to develop a deep understanding of data-driven questions and modern technologies such as machine learning and AI, which are crucial in later professional life. ► How do I teach? ►I attach great importance to ensuring that my students truly understand statistical concepts, data analytics methods, machine learning, and AI models, rather than just applying them mechanically – this is how we achieve sustainable success in statistics, data analytics, and modern technologies. ►My success is based on my ability to flexibly adapt my teaching style to the individual needs of students in statistics, data analytics, machine learning and AI, including topics such as regression methods, logistic regression and other machine learning algorithms. ►I use practical, lively examples from statistics, data science and AI to clearly explain abstract concepts such as hypothesis testing, analysis of variance, linear and nonlinear models and to anchor them deeply in the memory. ►With patience and clarity, I break down complex statistical analyses, machine learning models, and data processes into their essential components so that no student is overwhelmed and can build a solid foundation in statistics, data analytics, and AI. ►I am convinced that trusting collaboration is crucial to reducing uncertainty in statistics or data science and creating a productive learning atmosphere. ►I offer intensive exam preparation and project support in statistics, data analytics, machine learning and AI, develop strategies to combat exam anxiety with my students and train them on real data sets and complex algorithms. ►As an experienced online tutor for statistics, data analytics, machine learning, and AI, I use modern tools such as interactive whiteboards and live coding sessions in R to make teaching as efficient and practice-oriented as possible. ►Locations: I teach statistics, data analytics, machine learning, and AI at your home, online, or by appointment – flexible, professional, and tailored precisely to your needs.
Statistics · Computer programming · Numerical analysis
Trusted teacher: Hello, my name is William. As of today, I’ve been working for 11 years in the animation series and film industry as Lead and Senior Character artist, Lead and Senior Environment artist, CG generalist and CG supervisor. I understand the challenges associated with getting noticed by studios as a beginner who want to step into the industry and I’d like to provide my help. This is a consulting and supportive course for students and artists interested in breaking into the animation, video game, VFX and commercials industry. This is not suitable for any professional work, as I am surely not going to do any 3D work for you :) The course will be tailor-made, which means that I will assist and advise you with the best possible hints and tips based on your current skills and current portfolio. I will provide you with personalized feedback to help you boost your demo reel as close as possible to the standards of the industry for you to catch the attention of recruiters and hopefully getting you a job ! The software used should be free like Blender or Unreal Engine but I can also provide help within Maya if you can afford a license for yourself. The general idea is to provide guidance to level-up to a large and accurate knowledge for you to keep progressing with your preferred software of choice. This course is suitable for perfect beginners and hobbyists who want to turn professional. I can guide you through the numerous software out there and help you pick an industry standard and advise you on the skills you need to grow in order to create or boost your portfolio. I am a calm person with a good temperament and will try to provide best feedback for you, let’s have fun and create together!
Digital arts · Computer graphics · Video games
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Only reviews of students are published and they are guaranteed by Apprentus. Rated 4.8 out of 5 based on 172 reviews.

Mathematics classes for beginners and intermediate level (Gouda)
Mahmood
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I need to re-study 4 years of high school maths in only 5 months. Mahmood agreed to help me with this difficult task and thanks to his professional way of teaching I believe I can make this happen. He explains topics in detail and yet quickly enough to spare time for other topics. If you are unsure he points you to the right direction. Most important thing for me was that he made me realize that I first need to master concept #1 in order to be able to later master concept #5 and so on. You can see that he has a lot of teaching experience, he tries to understand the way YOU think and based on that he serves you clear explanation for topics you struggle to understand. I definitely recommend him as your next teacher!
Review by RADOSLAV
Photoshop and Digital Art for students, artists and photographers (Athens)
Emer
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My 16 year old decided to pursue a career at n fashion and art early on We found Emer and she was exactly what we were looking for and more when Theo applied for fashion Academies Her first extensive background and calm and friendly approach brought out the best in my 16 year old son Together they created an original portfolio crammed with original and artistic work Enthusiast and patient I have no reservations recommending Emer for any art driven personal or group learning sessions My sons testimony says it all She is simply amazing
Review by TONIA
Expert Math Tutor | School & University Level | Exam Prep & Confidence Boosting (Amsterdam)
Baia
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I couldn’t ask for a better tutor for my daughter! Baia is incredibly knowledgeable in math and algorithms, but what I truly think it sets her apart is her patience, kindness, and ability to make complex concepts easy to understand. She is always well-prepared and adapts her teaching style to fit my daughter’s needs, ensuring that learning is both effective and enjoyable. My daughter has gained so much confidence in her skills thanks to Baia’s guidance. I highly recommend her to anyone looking for an outstanding tutor!
Review by PATRICK REIS
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