Aug
14
comment Placing symbols so that no row remains empty.
6! is to large because you have two symbols twice.
Aug
13
revised Sphere equation given 4 points
short maxima program added
Aug
13
reviewed Reject suggested edit on Recurrence relation with geometric sequence
Aug
13
revised Sphere equation given 4 points
added Maxima program
Aug
12
comment Diophantine inequality that comes up after Vieta Jumping Hurwitz technique
not quotation marks, but semicolon. On my Windows notebook I can use the Alt Numpad input method to produce "ö" bei pressing directly "[Alt]+148". [Alt] is the left Alt-key, 148 must be typed on the numeric keypad. This works in comments, too. These codes work for me: en.wikipedia.org/wiki/Code_page_437#Characters
Aug
12
comment Diophantine inequality that comes up after Vieta Jumping Hurwitz technique
One can use the html technic: "ö" is written as "ö" or "ö". This works in questions and answers but not in comments. de.selfhtml.org/html/referenz/zeichen.htm#benannte_iso8859_1
Aug
12
reviewed Approve suggested edit on How do I solve $\vert x\vert^{x^2-2x} = 1$?
Aug
12
comment Archimedes' Apprxomation of Square Roots
the second sequence does not give only lower bounds. Starting with $x_1=x_2=\frac{5}{3}$ one gets: "lower bound","lower bound","upper bound","lower bound","lower bound","upper bound",...
Aug
12
revised Archimedes' Apprxomation of Square Roots
changed one formula, probably TeX error
Aug
12
revised Sphere equation given 4 points
added 165 characters in body
Aug
12
revised Sphere equation given 4 points
typo
Aug
12
answered Sphere equation given 4 points
Aug
12
revised Question on interest
format, tag
Aug
11
reviewed Approve suggested edit on Finding the equation of the tangent line at a point
Aug
11
comment Prove that $f(a) \leq f(x) \leq f(b) $
There is something missing: $f'(x) ≥ ?$
Aug
11
answered Complex Numbers Closed under division?
Aug
11
comment What's the probability of third coin being of 50 cent?
You can put the mouse pointer over a formatted text ( like $x^2+y^2$ ) and select "Show Math As -> TeX Commands" from the context menue (right mouse button) to get the TeX source of of an expression.
Aug
10
reviewed Approve suggested edit on If $\ker(t) = 0$, then is $t$ a linear transformation?
Aug
10
revised Algorithms for factoring multivariate polynomials
format and typos: removed a [ and *
Aug
10
reviewed Approve suggested edit on Exponential function, multivariable calculus