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        riddles >> suggestions, help, and FAQ >> testing: new math symbols
        
(Message started by: william wu on Aug 12^th, 2003, 11:05pm)

Title: testing: new math symbols
Post by william wu on Aug 12^th, 2003, 11:05pm

12:00 AM 8/13/2003

test:
[smiley=integral.gif] x² dx [smiley=larrow.gif] [smiley=infty.gif]
[infty][int]

Code:

[smiley=integral.gif] x[sup]2[/sup] dx [smiley=larrow.gif] [smiley=infty.gif]
[infty][int]

> "view all symbols" script not working :(
> need to batch automate color inversion with photoshop
> some new codes working. enclose infty in brackets to make infinity; planning to use LaTeX keywords ...

12:41 AM 8/13/2003

test:
[smiley=forall.gif][smiley=alpha.gif][smiley=in.gif][smiley=bbq.gif]

1:29 AM 8/13/2003

> color inversions done; symbols currently being slowly uploaded (56k modem)

http://www.ocf.berkeley.edu/~wwu/images/symbol_chart.gif useful symbols: line 7: emptyset line 8: alpha, beta, gamma, delta, epsilon, theta, psi, omega line 10: nabla, sum, prod line 13: bbc, bbf, bbg, bbn, bbq, bbr, bbz line 22: notsubset line 23: notapprox, notsupset, notsim line 24: vee, wedge, oplus, otimes, le, subset, subsetq, in line 25: ne, ge, supset, supseteq, owns, notin, equiv, sim, simeq line 26: approx, cong, propto, infty, forall, exists, lnot, bigto line 27: bigleftrightarrow, mapsto, onetoone, onto line 28: onetooneonto line 29: bigvee, bigcap, bigcup, oint, lfloor, rfloor, lceil, rceil, langle, rangle line 32: lessgtr line 34: therefore line 38: subsetneq, ncong line 42: pm, cap, cup

check out http://us.metamath.org/symbols/symbols.html for the full list of symbol codes.

> some of these images may have excessive border space; let me know if they aren't working out, because i can trim them accordingly.

test:
[smiley=1.gif] [smiley=cala.gif] [smiley=infty.gif] [smiley=doteqdot.gif] [smiley=doublecap.gif] [smiley=cphi.gif] [smiley=cdot.gif] [smiley=calx.gif] [smiley=doublebarwedge.gif]

Code:

[smiley=1.gif] [smiley=cala.gif] [smiley=infty.gif] [smiley=doteqdot.gif] [smiley=doublecap.gif] [smiley=cphi.gif] [smiley=cdot.gif] [smiley=calx.gif] [smiley=doublebarwedge.gif]

3:46 AM 8/13/2003

i'll resume tomorrow. let me know if aspects of the forum which normally work properly no longer do; by modifying existing code i may have introduced new bugs

Title: Re: testing: new math symbols / new smiley faces
Post by Icarus on Aug 13^th, 2003, 3:31pm

Fantastic! Be sure to add codes for [smiley=pi.gif] and [smiley=partial.gif]. (I see these two will need some trimming to bring the down to the line.) Thanks! This is cool!http://www.tipmaster.com/images/afro.gif

Title: Re: testing: new math symbols / new smiley faces
Post by william wu on Aug 13^th, 2003, 5:54pm

[pi] and [partial] symbols added to drop down menu. yes, this is definitely very cool 8)

5:53 PM 8/13/2003

test:

using ascii letters for variables:
lim(n[to][infty]) [sum]_i=1,..,nX[subi][supi] = lim(n[to][infty]) X[sub0][sup0] + X[sub1][sup1] + ... + X[subn][supn] [to] [pi]

Code:

lim(n[to][infty]) [sum][sub]i=1,..,n[/sub]X[subi][supi] = lim(n[to][infty]) X[sub0][sup0] + X[sub1][sup1] + ... + X[subn][supn] [to] [pi]

=============================

using GIF letters [smiley=r.gif], [smiley=n.gif] and [smiley=cx.gif] (cx.gif):
lim([smiley=n.gif][to][infty]) [sum]_i=1,..,n[smiley=cx.gif][subi][supi] = lim([smiley=n.gif][to][infty]) [smiley=cx.gif][sub0][sup0] + [smiley=cx.gif][sub1][sup1] + ... + [smiley=cx.gif][subn][supn] [to] [pi]

Code:

lim([smiley=n.gif][to][infty]) [sum][sub]i=1,..,n[/sub][smiley=cx.gif][subi][supi] = lim([smiley=n.gif][to][infty]) [smiley=cx.gif][sub0][sup0] + [smiley=cx.gif][sub1][sup1] + ... + [smiley=cx.gif][subn][supn] [to] [pi]

hmm. it looks like everything works out if we use the images completely when writing equations. however, that would be too annoying.

6:12 PM 8/13/2003

test material for trimming:

[forall]r,s[in][bbr], [exists]t[in][bbq] min(r,s) < t < max(r,s)

[int]x[sup2]dx = (1/3)x[sup3] + C

[lnot](E[sub1][perp]E[sub2])[bigto] Pr([bigcap]_i=1,2E[subi]) = Pr(E[sub1][cap]E[sub2]) [ne] Pr(E[sub1])Pr(E[sub2])

lim(n[to][infty]) { ([sum]_i=1[supn] 1/i) - ln n } [to][gamma][approx].57721

(d/dx)[smiley=cgamma.gif]|_x=1 = -[gamma]

x[n][oplus]y[n][bigto]X(z)R(z) ; x(t)[oplus]y(t)[bigleftrightarrow]X(f)Y(f)

[calf]^-1[X(j[omega])] = x(t)= (2[pi])^-1[int]_-oo^oox(t)e^-jwtd[omega]

sin[theta]([partial]/[partial]r)(r[sup2]([partial]u/[partial]r)) + ([partial]/[partial][theta])([partial]u/[partial][theta]) = 0

[forall]u,v[in][bbc][supn] |[langle]u,v[rangle]|[le][parallel]u[parallel][cdot][parallel]v[parallel]

[wutang]: [forall]k[in]{m|m[in][bbz][wedge]m[ge]2[wedge]([forall]n[in][bbz]:m[ne]b[supn])} [nexists]q[in][bbq] (log_bk = [pi][cdot]q)

Code:

[forall]r,s[in][bbr], [exists]t[in][bbq] min(r,s) < t < max(r,s)

[int]x[sup2]dx = (1/3)x[sup3] + C

[lnot](E[sub1][perp]E[sub2])[bigto] Pr([bigcap][sub]i=1,2[/sub]E[subi]) = Pr(E[sub1][cap]E[sub2]) [ne] Pr(E[sub1])Pr(E[sub2])

lim(n[to][infty]) { ([sum][sub]i=1[/sub][supn] 1/i) - ln n } [to][gamma][approx].57721

(d/dx)[smiley=cgamma.gif]|[sub]x=1[/sub] = -[gamma]

x[n][oplus]y[n][bigto]X(z)R(z) ; x(t)[oplus]y(t)[bigleftrightarrow]X(f)Y(f)

[calf][sup]-1[/sup][X(j[omega])] = x(t)= (2[pi])[sup]-1[/sup][int][sub]-oo[/sub][sup]oo[/sup]x(t)e[sup]-jwt[/sup]d[omega]

sin[theta]([partial]/[partial]r)(r[sup2]([partial]u/[partial]r)) + ([partial]/[partial][theta])([partial]u/[partial][theta]) = 0

[forall]u,v[in][bbc][supn] |[langle]u,v[rangle]|[le][parallel]u[parallel][cdot][parallel]v[parallel]

[wutang]: [forall]k[in]{m|m[in][bbz][wedge]m[ge]2[wedge]([forall]n[in][bbz]:m[ne]b[supn])} [nexists]q[in][bbq] (log[sub]b[/sub]k = [pi][cdot]q)

2:45 AM 8/15/2003

trimming done. some of the symbols still look a bit off (e.g. magnitude bars), but that's the best i can do unless i modify non-blank area on the images, which is more work than i'd like to do right now :)

3:25 AM 8/16/2003

"view all symbols" script fixed