User:Jeremyb/Sandbox

Links

• m:Help:Displaying a formula
• w:Wikipedia:How to write a Wikipedia article on Mathematics#Typesetting of mathematical formulas
• w:Wikipedia talk:WikiProject Mathematics/Proofs

pages and images with accessibility problems

prose that should go in module source rather than in the image

these images cannot be replaced entirely

• Image:Phased pattern.gif
• Image:Single voice channel.gif
• Image:12 channel group.gif
• Image:Broadside wavefront.gif — maybe
• Image:NRZ spectrum.gif — has a footnote. figure out what it is and if it needs to be hooked up

the only content is tables of text

• Image:Antenna gain.gif — Done; could use someone to look it over to be doubly sure I didn't goof. diff
• Image:Analog carrier systems.gif
• Image:2B1Q coding.gif
• Image:3B4B coding.gif
• Image:2B1Q coding.gif
• Image:HDB3 substitutions.gif
• Image:European TDM.gif
• Image:S bits.gif — done at #Image:S bits.gif but it doesn't look great. would be better if the columns were uniform width like in the image.
• Image:ESF.gif
• Image:North american TDM.gif
• Image:Digital transmission systems.gif — has a bunch of footnotes in image itself. figure out what they are and if they need to be hooked up as real notes.
• Image:BRA comparison.gif
• Image:Line code table.gif

mathematical formulas and equations

these images might contain interspersed prose as well

• Image:Endfire equations.gif — see first stab at #Image:Endfire equations.gif
• Image:Broadside equations.gif
• Image:Array factor.gif — looks like there's a little bit that can't be replaced at the top
• Image:Utilization.gif
• Image:LPDA formulas.gif

other

• Image:Fixed assgnment access.gif — probably best to split this up into 3 images. Maybe the 2 on the left can be SVG. The label for each one should be pulled out into the module source. IDK about the axis labels.
• Image:Queue length.gif another one with axis labels... have to look into possibilities and how en.wp / commons handles this (it's much better to have a single image for all languages than to have to generate a new image for each lang that uses it. speaking of which... see if commons has similar content and whether there's demand for this kind of stuff elsewhere.

triage queue

• Image:B3ZS example.gif
• Image:B3ZS substitutions.gif
• Image:B8ZS substitutions.gif
• Image:B6ZS example.gif
• Image:B6ZS substitutions.gif

Staging Area

Image:Endfire equations.gif

${\begin{aligned}\varphi &={\frac {2\pi }{\lambda }}s\cos(\theta )+\alpha \\0&={\frac {2\pi }{\lambda }}s\cos(0)+\alpha \\\alpha &=-{\frac {2\pi }{\lambda }}s\\\end{aligned}}$

Therefore the array factor for an end-fire array is:

$AF=\left|{\frac {\sin({\frac {n\varphi }{2}})}{{\sqrt {n}}\sin({\frac {\varphi }{2}})}}\right\vert$ where $\varphi ={\frac {2\pi }{\lambda }}s(\cos(\theta )-1)$

generally $s={\frac {\lambda }{4}}$ therefore $\varphi ={\frac {\pi }{2}}(\cos(\theta )-1)$

Original

Image:S bits.gif

Frame	1	2	3	4	5	6	7	8	9	10	11	12
S Bit	1	0	0	0	1	1	0	1	1	1	0	0

Original