Scientific Calculator
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2
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)
CE
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÷
√
∛
1/x
x!
7
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×
e
x
10
x
2
x
π
4
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-
sin
cos
tan
e
1
2
3
+
log
10
ln
ceil
floor
AC
0
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=
Calculator Tips
It is recommended that you open this site on a PC or laptop.
It follows
P.E.D.M.A.S
Calculation Method
P
- Parenthesis
E
- Exponent
D
- Division
M
- Multiplication
A
- Addition
S
- Subtraction
Write the operand or value before using any function or operator.
For the
sin
,
cos
and
tan
functions, the angle values taken are measured in
radians
,
NOT
in
degrees
.
Explanation:
The functions require values in radians. So, if we write 45 on the screen it will not be taken as 45° but as 45 rad.
Relation between radians and degrees :
π rad = 180°
Example :
To obtain the value of tan(45°)
i) Convert from degree to radians
Formula for conversion :
radian measure = (π / 180°) * degree measure
Calculation :
radian measure (45°) = (π / 180°) * 45°
radian measure (45°) = 0.7853981633975
ii) Press
tan
after receiving the screen value of the radian measure
Calculation :
tan(0.7853981633975) = 1.0000000000001033
That's how you use the trignometric functions in this Calculator.
Special functions :
ceil()
and
floor()
4.1.
ceil(x)
- This function returns the smallest integer that is greater than or equal to
x
.
Example :
ceil(3.2) = 4
ceil(3) = 3
ceil(-3.2) = -3
ceil(-3) = -3
4.2.
floor(x)
- This function returns the largest integer that is lesser than or equal to
x
.
Example :
floor(3.2) = 3
floor(3) = 3
floor(-3.2) = -4
floor(-3) = -3