Bou.lt

Projects
Notes
Logic, the natural numbers and computability Algebra including linear algebra Real analysis, variational calculus and functionals Complex analysis Abstract algebra Analytic geometry and Euclidian space Topology
Newtonian gravity and electrostatics Special relativity, electromagnetism and general relativity Rigid body physics
Computer science, integer RISC instructions (RV64I) and building a hex and macro assembler Simple algorithms with integer addition and subtraction and arrays, decision problems, other problems, lossless compression Algorithms for integer multiplication and division, and floating point arithmetic Freestanding C, and building a C compiler in assembly then C Data structures and algorithms
Univariate probability Multivariate probability Multivariate discriminative probability including machine learning Fully-connected neural networks Univariate time series Multivariate time series Multivariate probability inference Probabilistic Turing machines and algorithms, and encryption
Statistical mechanics Quantum mechanics and quantum computing Chemistry and geology Biology Engineering Electronics Pre-computer electronics for finite state machines including making a calculator: boot ROMs/firmware (mask ROM/diode matrix), punch cards, memory mapped IO for LEDs and keyboards and volatile RAM (SRAM and DRAM) (eg rom for e and pi in calculator, (could have big page on sequential/combinatorial logic before, and could introduce some of these here)
Manufacturing RV64I CPUs Micro-architecture including cache, prefetching, instruction pipelines, branch prediction, out-of-order execution and speculative execution Control additions (RV64I_Zicsr_Zifencei) integer multiplication and division (RV64IM_Zicsr_Zifencei), Floating Point Units (FPUs) (RV64IMFDQ_Zicsr_Zifencei), Single Instruction, Multiple Data (SIMD) (RV64IMFDQV_Zicsr_Zifencei) and Basic Linear Algebra Subprograms (BLAS)Other Reduced Instruction Set Computers (RISC) and Complex Instruction Set Computers (CISC)2D graphics Non-volatile editable memory: bootloaders and computer storage including magnetic memory (magnetic core memory, magnetic tape, floppy disks, hard drives), Semiconductor memory incuding SSD (EPROM/EEPROM/flash memory), optical memory (CD/DVD etc), Master Boot Record (MBR) and FAT32 Networks Audio 3D graphics Multithreading and multi-core CPUs (RV64IMFDQVA_Zicsr_Zifencei aka RV64GQV)Graphics Processing Units (GPUs) and Tensor Processing Units (TPUs)
RV64GQV_S, dynamic libraries, Memory Mapping Units (MMUs), Address Generation Units (AGUs), protection rings, CPU interrupts and GNU/Linux/Systemd Hosted C and compiling C code with Linux Securing the system and boot process: Including encrypting systems, Logical Volume Management (LVM), trusted execution environment, secure enclave, Supervisor Mode Access Prevention, Intel Management Engine (ME) and AMD Platform Security Processor (PSP)Networks on Linux Audio and video output in Linux, and sandboxing applications Serialisation, single-node databases, Structured Query Language (SQL) and Extract-Transform-Load/Extract-Load-Transform
Other imperative languages: Fortran, Algol, Pascal C++, objects, generic programming, functional programming and clang/LLVM, and transpilers Other C-family languages: Rust, Zig
Scheme and Common Lisp (compiled natively), and dynamic typing Functional languages: Meta Language (ML), Caml, OCaml and Haskell Other compiled languages with runtime systems: Objective-C, Nim, Forth, COBOL, Smalltalk and Simula Communicating Sequential Processes (CSP) and actor model concurrent languages: Swift, Go C#, F#, VB.NET and mono
Java, garbage collection, process virtual machines and Kotlin Other Lisp-family languages, and compiling them to VM: Racket, Clojure and Scala Communicating Sequential Processes (CSP) and actor model concurrent languages with virual machines: The BEAM VM and Erlang, Elixer, Dart (other concurrency model?)
Other interpreted languages: Lua, Perl, Ruby, Julia, Octave, PHP and FreeBASIC
HyperText Markup Language (HTML), Cascading Style Sheets (CSS) and the World Wide Web (WWW)JavaScript, Just-In-Time (JIT) compilation and WebAssembly (Wasm)Server-side javascript and javascript frameworks and libraries
Python Python: Data Python: Internet packages
R Specific packages for R Validating code and compilers: Coq (ocaml), compcert, hol (ocaml), isabelle, agda (haskell)Logical programming languages including ada and prolog
Reverse engineering hardware, backing up ROMs, hardware emulation including use of JIT and dynamic recompilers, and emulation of retro video game systems Reverse engineering software
Natural Language Processing (NLP) of just text, including transformers and Large Language Models (LLMs)Natural Language Processing (NLP) with text and audio Computer vision Working with specific datasets, and models including Llama and Stable Diffusion
Specific Linux distributions, system virtual machines, RV64GQVH_S, hardware-assisted virtualisation and OS-level virtualisation with Docker Distributed computing Integrated Development Environments (IDEs)Android
Microsoft Disk Operating System (MS-DOS) and other non-multitasking operating systems including ZX BASIC, Classic MacOS, PC88, PC98, MSX, Machine Operating System for BBC Micro, Commadore 64 FreeBSD and OpenBSD Windows 3.x, Windows 9x and Windows NT macOS and iOS
Decision and game theory General equilibrium Accounting Industrial organisation Money, banking and finance and international trade Microeconomics including information asymmetry, labour markets, externalities, public goods and subscription-based services Business Macroeconomics Public choice and government production of goods Cryptocurrencies Specific legislation and regulation Languages and packages for economics: Dynare for Octave, QuantEcon for Python/Julia, NetLogo; Mesa for Python
History Epistemology and ontology Political science and philosophy

GitHub
LinkedIn

Simple algorithms with integer addition and subtraction and arrays, decision problems, other problems, lossless compression

Integer maths algorithms

Algorithms for integer multiplication

Algorithms for integer division, modulus and remainders

Calculating natural number square roots

Identifying primes

Factorising natural numbers

Arrays and simple array algorithms

Reversing arrays

Reductions on arrays

Sorted arrays and bubble sort

Searching sorted and unsorted arrays

Filtering and slicing arrays

Concatenating arrays

Merging sorted arrays

Decision problems and assessing algorithms

Decision problems

Correctness of algorithms

Measuring algorithmic complexity with big-O notation

P (PTIME), EXPTIME, DTIME and simulation by Turing-equivalent machines in polynomial time

Hardness of problems and completeness of problems in a given complexity class

L (LSPACE), PSPACE, EXPSPACE, DSPACE

The relationships between P, L and PSPACE

Problems reducible to decision problems: Search problems and optimisation problems

Search problems and reducing them to decision problems

Optimisation problems and reducing them to decision problems

Problems not reducible to decision problems: Counting problems and function problems

Counting problems and their complexity classes (including #P)

Function problems and their complexity classes (including FP)

Polynomial-time reductions

Log-space reductions

Simple lossess compression

Simple lossless compression

The relationships between P, L and PSPACE

Introduction

Introduction

P is no larger than PSPACE.

P is at least as big as L.