Web 2.0 scientific calculator

# Scientific Calculator

This calculator performs most of the mathematical operations that you may need in your studies or work. Examples are given for all possible actions. If you don't need so many functions, use a simple calculator. More detailed: Simple Calculator

## How to use the scientific calculator

ButtonsUsage
1 2 3 4 5 6 7 8 9 0Entering numbers
+ × ÷Performing basic mathematical operations (addition, subtraction, multiplication, division):
2 + 3 = 5
=Getting the calculation result
CClearing the calculator screen
Deleting the last character entered:
1 2 3 4 123
±Changing the sign of a number from positive to negative and vice versa:
3 ± −3
( )Entering parentheses:
( 2 + 2 ) × 2 = 8
.Separating the fractional part of the decimal fraction:
0 . 1 + 0 . 2 = 0.3
÷Separating the numerator and denominator in a common fraction:
5 ÷ 8 1 ÷ 4 = 3/8
1/xCalculating the reciprocal of a number:
5 1/x = 0.2
x2 x3 xy 10XPerforming exponentiation:
3 x2 = 9
2 xy 4 = 16
5 10X = 100 000
√x 3√x y√xCalculating the root of a number:
1 2 5 3√x = 5
1 6 y√x 4 = 2
,Separating function arguments:
log 9 , 3 = 2
logCalculating the logarithm:
log 1 6 , 2 = 4
eEntering the mathematical constant e:
log 1 , e = 0
πEntering the mathematical constant π
2ndActivating the second function of the buttons
2nd iEntering an imaginary unit i
2nd %Calculating a percentage of a number, changing a number by a percentage:
4 0 × 5 2nd % = 2
4 0 5 2nd % = 38
sinCalculating the sine of the angle:
sin 9 0 = 1
cosCalculating the cosine of the angle:
cos 1 8 0 = −1
tanCalculating the tangent of the angle:
tan 4 5 = 1
cotCalculating the cotangent of the angle:
cot 9 0 = 0
sec cscCalculating the secant of the angle and the cosecant of the angle:
sec 6 0 = 2
sinh cosh tanhCalculating the hyperbolic functions
2nd asin
2nd acos
2nd atan
2nd acot
2nd asec
2nd acsc
Calculating the inverse trigonometric functions:
2nd asin 1 = 90°
2nd asec 2 = 60°
!Calculating the factorial of a number:
5 ! = 120
ncr nprCalculating the number of combinations (without repetitions) and the number of permutations (without repetitions):
ncr 6 , 4 = 15
xEntering a variable in the equation to be solved:
6 × x 8 x=y 4 = x = 2
2nd modPerforming division with remainder:
8 2nd mod 3 = 2
2nd !Performing a vector product:
( 1 , 2 , 3 )
2nd ! 2nd
( 4 , 5 , 6 ) = (−3 6 −3)
2nd [
2nd ]
Marking the beginning and end of the matrix, marking the beginning and end of the matrix row:
2nd
[ [ 1 , 2 , 3 ]
[ 4 , 3 , 1 ]
[ 2 , 4 , 0 ] ]
2nd × 2 =
⎡ 2 4 6 ⎤
⎢ 8 6 2 ⎥
⎣ 4 8 0 ⎦