Eco 14 - Page 198

CALCULATOR
Eco Manual
198
Examples of other Calculator Functions
FUNCTION PROBLEM KEYS TO SELECT
(ECO produces answers)
Power
162
4
=
2 x
ˆ y 4 =
Reciprocal Reciprocal of 5
2.0
5
1
=
5 1/x
Square Root
39 =
9
SQUARE ROOT
Factorial
120!5 =
5 n!
Exponential
8553692319.20
3
≈e
3 e
ˆ x
Natural logarhithmic
()
1ln
=
e
L e
ˆ x ln
Logarithm base 10
(
)
110log
10
=
10 log
Number
π
141592653.3=
π
Pi
Sine
1
2
sin =
⎟
⎠
⎞
⎜
⎝
⎛
π
pi
÷
2 = sin
Cosine
(
)
1cos
−
=
π
Pi cos
Tangent
827320508067.1
3
tan ≈
⎟
⎠
⎞
⎜
⎝
⎛
π
Pi
÷
3 = tan