MATLAB Programming/Fundamentals of MATLAB/MATLAB operator
MATLAB Operator edit
MATLAB have a few operator types to manipulate shown below
Note: Variables a and b below represents number
Arithmetic Operations edit
Arithmetic Operator is used as mathematical operator that manipulates the number according to the formula requirement. The result is shown as numbers.
Addition | a + b |
Subtraction | a - b |
Multiplication | a * b |
Forward division | a / b |
Backward division | a \ b |
Exponentiation | a ^ b |
Assignment | a = b |
Relational Operations edit
Relational Operator is used to check if numbers are having any significant relationship with one or another. The results is usually is shown TRUE or FALSE.
Equal To | a == b |
Not Equal To | a ~= b |
Greater than | a > b |
Greater or equal to | a >= b |
Lesser than | a < b |
Lesser or equal to | a <= b |
Logical Operations edit
Logical Operator is used to check if number fulfills the logical conditions, the result is usually shown TRUE or FALSE.
Logical AND | a && b |
Logical OR | a || b |
Logical NOT | a ~ b |
Elementary Mathematics Constants and Functions edit
Besides mathematical formula, there are a few mathematical constant and function that you can use to make your works in Matlab easier. More information about the functions used can be found here:Mathematical_symbols
pi | Returns value of 3.1416 (Note: Ratio of a circle's circumference to its diameter) |
sqrt(a) | Returns square root of a |
exp(1) | Returns value of 2.7183 This is exponential function (Note: it is inverse of natural log, try log(exp(1) and see the result) |
log(a) | This logarithm operator is to find natural number log of a number |
log10(a) | This base10 log operator is common logarithm for base 10 |
mod(a,b) or rem(a,b) | This modulo operator returns the remainder after a is divided by b. |
: (Colon) | Generate a sequence |
round(a,b) | This rounding operator round up to the number to the nearest digit "a" by the significant digit "b"
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primes(a) | Returns a list of prime numbers less than or equal to number a |
gcd(a,b) | Returns the greatest common divisors of the number of a and b. |
lcm(a,b) | Returns the least common multiples of the number of a and b. |
Trigonometry Operations edit
The trigonometry formula are given as followed:
Sin α - a / h
Cos α - b / c
Tan α - a / b
sin(α) | This sine operator returns sine value of argument in radians |
sind(α) | This sine operator returns sine value of argument in degree |
cos(α) | This cosine operator returns cosine value of argument in radians |
cosd(α) | This cosine operator returns sine value of argument in degree |
tan(α) | This tan operator returns tangent value of argument in radians |
tand(α) | This tan operator returns tangent value of argument in degree |
deg2rad(α) | Convert angle from degrees to radian |
rad2deg(α) | Convert angle from radians to degrees (Note: Try to convert the pi from radian to degrees) |
Matrix Operations edit
[ ] | Container for matrix |
, | Matrix row separator |
; | Matrix column separator |
Others edit
randi | Random integer |