| MATLAB Function Reference | |
Trigonometric
| acos | Inverse cosine |
| acosd | Inverse cosine, degrees |
| acosh | Inverse hyperbolic cosine |
| acot | Inverse cotangent |
| acotd | Inverse cotangent, degrees |
| acoth | Inverse hyperbolic cotangent |
| acsc | Inverse cosecant |
| acscd | Inverse cosecant, degrees |
| acsch | Inverse hyperbolic cosecant |
| asec | Inverse secant |
| asecd | Inverse secant, degrees |
| asech | Inverse hyperbolic secant |
| asin | Inverse sine |
| asind | Inverse sine, degrees |
| asinh | Inverse hyperbolic sine |
| atan | Inverse tangent |
| atand | Inverse tangent, degrees |
| atanh | Inverse hyperbolic tangent |
| atan2 | Four-quadrant inverse tangent |
| cos | Cosine |
| cosd | Cosine, degrees |
| cosh | Hyperbolic cosine |
| cot | Cotangent |
| cotd | Cotangent, degrees |
| coth | Hyperbolic cotangent |
| csc | Cosecant |
| cscd | Cosecant, degrees |
| csch | Hyperbolic cosecant |
| sec | Secant |
| secd | Secant, degrees |
| sech | Hyperbolic secant |
| sin | Sine |
| sind | Sine, degrees |
| sinh | Hyperbolic sine |
| tan | Tangent |
| tand | Tangent, degrees |
| tanh | Hyperbolic tangent |
Exponential
| exp | Exponential |
| expm1 | Exponential of x minus 1 |
| log | Natural logarithm |
| log1p | Logarithm of 1+x |
| log2 | Base 2 logarithm and dissect floating-point numbers into exponent and mantissa |
| log10 | Common (base 10) logarithm |
| nextpow2 | Next higher power of 2 |
| pow2 | Base 2 power and scale floating-point number |
| reallog | Natural logarithm for nonnegative real arrays |
| realpow | Array power for real-only output |
| realsqrt | Square root for nonnegative real arrays |
| sqrt | Square root |
| nthroot | Real nth root |
Complex
| abs | Absolute value |
| angle | Phase angle |
| complex | Construct complex data from real and imaginary parts |
| conj | Complex conjugate |
| cplxpair | Sort numbers into complex conjugate pairs |
| i | Imaginary unit |
| imag | Complex imaginary part |
| isreal | Determine if input is real array |
| j | Imaginary unit |
| real | Complex real part |
| sign | Signum |
| unwrap | Unwrap phase angle |
Rounding and Remainder
| fix | Round towards zero |
| floor | Round towards minus infinity |
| ceil | Round towards plus infinity |
| round | Round towards nearest integer |
| mod | Modulus after division |
| rem | Remainder after division |
Discrete Math (e.g., Prime Factors)
| factor | Prime factors |
| factorial | Factorial function |
| gcd | Greatest common divisor |
| isprime | Determine if input is prime number |
| lcm | Least common multiple |
| nchoosek | All combinations of N elements taken K at a time |
| perms | All possible permutations |
| primes | Generate list of prime numbers |
| rat, rats | Rational fraction approximation |
| | Linear Algebra | Data Analysis and Fourier Transforms | |
© 1994-2005 The MathWorks, Inc.