admin

16 Questions
1410 Answers

+4

2318

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+3146

Neue Datenschutzrichtlinie, Mai 2018

Hallo,

Diese Webseite wurde aktualisiert mit kleineren Anpassungen an die DS-GVO.
read more ..

off-topic

admin May 27, 2018

+19

3481

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+3146

New Privacy Policy, May 2018

Hello,

this website was updated today because of some legal changes here in Europe. ("GDPR").
read more ..

off-topic

admin May 27, 2018

+6

2271

1

+3146

New version is online for two weeks now, any problems?

Hi,

Any problems? You can use the "Report a Problem" link in the footer, or send me an email to britnex+bugs@gmail.com
read more ..

admin Sep 12, 2015

+20

2717

16

+3146

New website is online.

Hi,

Any problems? You can use the "Report a Problem" link in the footer, or send me an email to britnex+bugs@gmail.com , thank you!
read more ..

Melody ●●●●●●●●●●●●●●●●

admin Aug 30, 2015

+7

2577

2

+3146

Neue Version der Webseite ist online

Hi,

Probleme bitte per Email an britnex+bugs@gmail.com melden, Danke!
read more ..

admin Aug 30, 2015

+67

3

4475

11

+3146

three times ten to the power of negative 2

help what is 3x10to the power of negative 2

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admin Jan 26, 2012

+3146

0

[input]solve( 6x-5y=4, y-4x=2 )[/input]
[input]solve( 5x+3y=15, 2x-3y=-1 )[/input]

adminMay 2, 2012

+3146

0

[input]solve( a+b=700, a*0.07+b*0.06=47 )[/input]

adminMay 2, 2012

+3146

0

everywhere where x^2 - 2x = 0

[input]x^2 - 2x=0[/input]

[input]plot( (2x^2 + 5)/(x^2 - 2x) , -1..3, -100..100 )[/input]

adminMay 1, 2012

+3146

0

adminMay 1, 2012

+3146

0

[input]data=(0.22,0.32,0.11,0.33,0.12); xs=sum(data[x],x=1..5)/5; sqrt( 1/(5-1)* sum( (data[x]-xs)^2 ,x=1..5) )[/input]

adminMay 1, 2012

+3146

0

EisenhowerStudent:
You can always use pythagorean theorem as a shortcut.

well, the triangle might not have a 90° angle...

adminApr 30, 2012

+3146

0

a/sin(A) = b/ sin(B) = c/sin(C)

a given.
A given.
b given.
B unknown.

a/sin(A) = b/ sin(B)
sin(B)*a/sin(A) = b
sin(B) = sin(A)*b/a
B = asin( sin(A)*b/a )

c given.
C unknown.

A+B+C = 180
C=180-A-B
C=180-36-asin( sin(A)*b/a )

a/sin(A) = c/sin(C)
sin(C)*a/sin(A) = c
c = sin(C)*a/sin(A)

[input]a=4; b=3; A=36; c = sin( 180-36-asin( sin(A)*b/a ) ) * a / sin( A )[/input]

adminApr 30, 2012

+3146

0

[input]plot( -7x+3, -7x - 44, x=-7..0 )[/input]

adminApr 30, 2012

+3146

0

[input](5+3i) / (2+1)[/input]

(5+3i) / (2+1) = (5+3i) /3 = 5/3 + 3i/3 = 5/3 + i

adminApr 30, 2012

+3146

0

[input]solve( 4y + x = -1, 2y + 3x = -13 )[/input]

adminApr 30, 2012