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Item #:
269591992
LAMBDA, LET, Recursive LAMBDA, and Custom Functions: The Advanced Excel Formula Programmer's Handbook
Item #:
269591992
MUR 1470
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Product Details
- LAMBDA, LET, Recursive LAMBDA, and Custom Functions: The Advanced Excel Formula Programmer's Handbook is a complete, production-oriented guide to the modern Excel formula language. It is written for analysts, modelers, and engineers who already know Excel and want to program it the way they program any other language.The book treats LET, LAMBDA, and recursive LAMBDA as the three abstractions they really are: naming, functions, and control flow. Part I frames the shift from cell arithmetic to a real functional language and gets your environment ready. Part II builds LET from first principles — binding names, cleaning data with dynamic arrays, caching intermediate results, and avoiding the anti-patterns that quietly wreck large workbooks. Part III introduces LAMBDA as a first-class value: parameters, arity, Named Functions, composition, higher-order array functions like MAP, REDUCE, SCAN, BYROW, and BYCOL, and disciplined error handling at the function boundary. Part IV is the heart of the book — recursion. It covers the SELF keyword, base cases, depth limits, tail recursion and the Y-combinator pattern, string and array walkers, tree traversal over parent-child tables, and a practical recursive library you can drop into any workbook.Parts V and VI move from primitives to engineering. You build a full custom function library across text, math, arrays, dates, finance, and statistics; then go deeper with function factories, higher-order functions of your own design, currying and partial application, memoization strategies, testing harnesses, documentation conventions, naming standards, performance profiling, and cross-platform parity across Windows, Mac, the web, and mobile. Part VII closes with four full case studies: a single-cell financial model, a recursive-descent text parser, a bill-of-materials tree walker, and a ten-thousand-trial Monte Carlo simulation — followed by a forward look at Python in Excel, Copilot, and the Power Platform.Every chapter is code-first. Formulas are shown as they are typed, results as they appear, and the reasoning is stated in plain language. Comparison tables, benchmark numbers, boundary-test tables, and worked examples appear throughout so you can verify behavior instead of trusting it. By the end you will have a working library of named functions, a repeatable testing and documentation workflow, and a mental model that treats Excel not as a grid of cells but as a functional programming environment — one that ships with every copy of Microsoft 365.
| Publisher | Muratspahic Imad |
| Publication date | September 22, 2026 |
| Language | English |
| File size | 1.0 MB |
| Screen Reader | Supported |
| Enhanced typesetting | Enabled |
| X-Ray | Not Enabled |
| Word Wise | Not Enabled |
| Print length | 99 pages |
| ISBN-13 | 978-5253924686 |
| Page Flip | Enabled |
| Item Weight | 1.5 lbs (680 grams) |
Product Description
LAMBDA, LET, Recursive LAMBDA, and Custom Functions: The Advanced Excel Formula Programmer's Handbook
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MUR 1470
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