Chapter 1: The General Number
lines 915-3491 - 10,319 words
Complex quantities, Ether references, Impedance / reactance
Ether, Illumination, Frequency8 equations - 4 figures - 0 quotes
Engineering Mathematics
Use this reader when checking Steinmetz's mathematical notation, especially complex quantities and series formulas.
sources/engineering-mathematics/raw/ This book is the mathematical toolbox behind the rest of the archive. It is where Steinmetz teaches the mathematical habits that make alternating-current theory, symbolic quantities, trigonometric series, approximation, empirical curves, and engineering calculation usable.
It is especially important for translating his notation into modern form without flattening it. When the archive explains impedance, phasors, harmonics, transient terms, or empirical constants, this source should provide the mathematical background.
The current parser still needs hand review because one chapter title is OCR-damaged and the chapter split may miss a heading. This is marked as candidate data, not canonical structure.
This source should support the site’s mathematical translations. It is the place to explain why complex numbers are not merely bookkeeping tricks in Steinmetz’s engineering method, but a disciplined way of representing magnitude, phase, growth, decay, and periodicity.
Generated source dashboard: this section joins the source overview to the book coverage atlas, source text reader, chapter workbench, visual maps, and formula maps. Counts are candidate research aids until scan verification promotes them.
processed sections
candidate words
formula candidates
figure candidates
promoted crops
Engineering Mathematics: A Series of Lectures Delivered at Union College currently contributes 6 processed sections and 54,448 candidate OCR/PDF-text words to the archive. Its strongest tracked evidence clusters are Waves / transmission lines, Complex quantities, Impedance / reactance.
This is a routing judgment based on processed metadata, not a final historical claim. The strongest next move for any exact quotation, equation, or diagram is still to open the source scan and check the page image.
| Theme | Candidate Hits | Evidence Route |
|---|---|---|
| Waves / transmission lines | 114 | Open theme evidence |
| Complex quantities | 99 | Open theme evidence |
| Impedance / reactance | 75 | Open theme evidence |
| Magnetism | 75 | Open theme evidence |
| Field language | 57 | Open theme evidence |
| Ether references | 52 | Open theme evidence |
| Dielectricity / capacity | 50 | Open theme evidence |
| Radiation / light | 47 | Open theme evidence |
lines 915-3491 - 10,319 words
Complex quantities, Ether references, Impedance / reactance
Ether, Illumination, Frequency8 equations - 4 figures - 0 quotes
lines 6064-15155 - 18,269 words
Waves / transmission lines, Impedance / reactance, Magnetism
Ether, Magnetic permeability, Frequency, Light0 equations - 5 figures - 0 quotes
lines 16483-21988 - 7,171 words
Magnetism, Waves / transmission lines, Radiation / light
Ether, Frequency, Radiation, Light0 equations - 0 figures - 0 quotes
lines 21989-25587 - 7,123 words
Complex quantities, Field language, Transients / damping
Ether, Light, Arc lamp, Frequency0 equations - 0 figures - 0 quotes
lines 3492-6063 - 7,738 words
Field language, Dielectricity / capacity, Complex quantities
Ether, Light, Frequency0 equations - 0 figures - 0 quotes
lines 15156-16482 - 3,828 words
Impedance / reactance, Complex quantities, Radiation / light
Frequency, Light0 equations - 0 figures - 0 quotes
| Term | Candidate Hits | Use |
|---|---|---|
| ether | 52 | Review in workbench before promoting to glossary. |
| electrostatic capacity | 1 | Review in workbench before promoting to glossary. |
| effective resistance | 1 | Review in workbench before promoting to glossary. |
Verify title page, edition, page images, and OCR line boundaries before final quotation.
Use the formula map to locate equations, then correct OCR symbols and preserve Steinmetz notation before modern translation.
Modern engineering and ether-field readings belong after source anchoring, with labels kept visible.