Calculator
A Calculator is a device used to compute arithmetic.
Precision
Precision. The number of decimal places.
That is, the number of digits after decimal point '.'.
Prime
A Prime number is a natural number greater than 1 that
has no positive divisors other than 1 and itself.
Composite
A natural number greater than 1 that is not
a prime number is called a Composite number.
Factorial
The Factorial of a non-negative integer number, n,
is the product of n and all positive integer numbers lesser than n.
Rational
A Rational number can be written as a ratio of two integers.
For example 2 and 0.5 are rational numbers because 2 = 2/1 and 0.5 = 1/2.
Irrational
An Irrational number cannot be written as a ratio of two integers.
The series or sequence of numbers following after its decimal point do not have a
repetitive or repeating pattern. Pi contant and Euler's number are irrational numbers.
E Constant
E Constant or Euler's number is a famous irrational number
named after Swiss mathematician Leonhard Euler.
Pi Constant
The Pi Constant is a mathematical constant and irrational number
defined as the ratio of a circle's circumference to its diameter.
That is, Pi = Circumference/Diameter = Circmference/(2*Radius).
Absolute Value
The Absolute Value, Abs, of a number is the value of a number
without a negative sign in its front. For example, Abs(n) = n and Abs(-m) = m,
where n is a nonnegative number and -m is a negative number. E.g. Abs(3) = Abs(-3) = 3.
Floor
The Floor of a real number n is the maximum integer number m which is
lesser than or equal to n. So, Floor(n) = m <= n. If n is an integer, then Floor(n) = n.
Examples: Floor(1) = Floor(1.001) = Floor(1.3) = Floor(1.5) = Floor(1.9) = Floor(1.999) = 1.
E.g.: Floor(-2) = Floor(-1.01) = Floor(-1.4) = Floor(-1.5) = Floor(-1.8) = Floor(-1.99) = -2.
Ceil
The Ceil of a real number n is the minimum integer number m which is
greater than n or equal to n. For example, Ceil(n) = m >= n. Ceil(n) = n if n is an integer.
Examples: Ceil(4) = Ceil(3.99999) = Ceil(3.7) = Ceil(3.5) = Ceil(3.1) = Ceil(3.00001) = 4.
E.g.: Ceil(-3) = Ceil(-3.99999) = Ceil(-3.6) = Ceil(-3.5) = Ceil(-3.2) = Ceil(-3.00001) = -3.
Addition
Plus (+) Examples: 0 + 0 = 0, 0 + 1 = 1 + 0 = 1, 1 + 1 = 2, 1 + 2 = 2 + 1 = 3, etc.
Subtration
Minus (-) Examples: 0 - 0 = 0, 0 - 1 = -1, 1 - 0 = 1, 1 - 1 = 0, etc.
Multiplication
Product (*) Examples: 0 * 0 = 0, 0 * 1 = 1 * 0 = 0, 1 * 1 = 1, 1 * 2 = 2 * 1 = 2, etc.
Division
Divide (/) Examples: 0 / 0 = undefined, 0 / 1 = 0, 1 / 0 = +infinity, 1 / 1 = 1, etc.
Modulus
Mod (%) Examples: If X and Y are positive integers, then X mod Y denoted X % Y
is the integer remainder after X is divided by Y. So, 4 % 2 = 0, 3 % 2 = 1, etc.
Power
Power (^) Examples: 0 ^ 0 = 1, 0 ^ 1 = 0, 1 ^ 0 = 1, 1 ^ 1 = 1, 1 ^ 2 = 1 * 1 = 1,
2 ^ 0 = 1, 2 ^ 1 = 2, 2 ^ 2 = 2 * 2 = 4, 2 ^ 3 = 2 * 2 * 2 = 8, 3 ^ 0 = 1, 3 ^ 1 = 3, etc.
Even
An Even number is an integer number equally divided by 2.
Even numbers are integer multiples of two. Examples: -8, -6, -4, -2, 0, 2, 4, etc.
Composite
Any integer number that is not Even is an Odd number.
Odd numbers are not evenly divisible by the number 2. Examples: -1, 1, 3, 5, etc.
|