Civil Engineering Reference
In-Depth Information
Logarithmen
log
a
=
ln
a
e
a
ln
e
=
=
=
a
log
a
lg
a
10
a
lg
10
log
log
a
c
ac
=
⇔=
=
=
b a
b
1
b
cd
0
b
log
1
b
( )
log
⋅
=
log
c
+
log
d
b
b
b
c
⎛⎞
log
=
log
c
−
log
d
⎜
⎝⎠
b
b
b
d
n
log
a
=⋅
n
log
a
b
b
1
1
n
log
x
=⋅
log
x
=
log (
x
n
)
a
a
a
n
1
log
log
x
=−
a
a
x
y
⎛
⎞
log (
xy
+
)
=
log
x
+
log
1
+
⎜
⎟
a
a
a
⎝
⎠
x
y
x
⎛
⎞
8
log (
xy
−
)
=
log
x
+
l
og
1
−
⎜
⎟
a
a
a
⎝
⎠
Quadratische Gleichung
2
pp
2
xpxq0x
+⋅+=
=−± −
q
12
/
2
4
Trigonometrie
Gegenkathete
a
sin
a
=
=
Hypotenuse
c
Ankathete
b
cos
a
=
=
Hypotenuse
c
Gegenkathete
a
tan
a
=
=
Ankathete
b
Ankathete
b
cot
a
=
=
Gegenkathete
a
