| Type | Fortran90 | MatLab | Description |
|---|
| A | ABS(A) | abs(a) | Absolute value of A |
| R | ACOS(X) | acos(x) | Arc cosine of real X |
| R | AIMAG(Z) | imag(z) | Imaginary part of complex
number |
| R | AINT(X) | real(fix(x)) |
Truncate (fractional real) X to a real whole number |
| R | ANINT(X) | real(round(x)) |
Round (fractional real) X to a real whole number |
| R | ASIN(X) | asin(x) |
Arcsine of real X |
| R | ATAN(X) | atan(x) |
Arctangent of real X |
| R | ATAN2(Y,X) | atan2(y,x) |
Arctangent of complex number (X,Y) |
| I | CEILING(X) | ceil(x) |
Least integer that is >= X |
| Z | CMPLX(X,Y) | (x+yi) |
Compose 2 reals into 1 complex number |
| Z | CONJG(Z) | conj(z) |
Conjugate of complex number Z |
| R | COS(X) | cos(x) | Cosine of real X |
| R | COSH(X) | cosh(x) |
Hyperbolic cosine of real X |
| R | DOT_PRODUCT(X,Y) |
x'*y |
Dot product of vectors X and Y |
| R,Z | EXP(XZ) | exp(xz) | Exponential of real or
complex number |
| I | FLOOR(X) | floor(x) |
Greatest integer that is <= X |
| R | HUGE(X) | realmax |
Value of the largest possible real number |
| I | INT(A) | int(a) |
Convert A to integer |
| R | LOG(XZ) | log(xz) |
Natural logarithm of real or complex number XZ |
| R | LOG10(XZ) | log10(xz) |
Base 10 logarithm of real or complex number XZ |
| Array | MATMUL(X,Y) | x*y |
Conformable matrix multiplication X*Y |
| I | MAXLOC(X) |
[y,i]=max(x) | Location of the maximum array element |
| R | MAXVAL(X) |
y=max(x) | Value of the maximum array element |
| I | MINLOC(X) |
[y,i]=min(x) | Location of the minimum array element |
| R | MINVAL(X) |
y=min(x) | Value of the minimum array element |
| I | NINT(X) | round(x) |
Round (fractional real) X to an integer whole number |
| CALL | RANDOM_NUMBER(X) |
x=rand | Psuedo random number in (0,1) |
| CALL | RANDOM_SEED |
rand('seed') | Initialize Psuedo random number generator |
| R | REAL(A) | real(a) |
Convert a variable A to real |
| Array | RESHAPE(X, (/I1,I2/) |
reshape(x,i1,i2) | Reshape array X into matrix I1x12 |
| Int Array | SHAPE(X) |
size(x) | Array shape vector |
| R | SIGN(X,Y) | |
Abs(X)*Sign(Y) |
| R | SIGN(0.5,X) - SIGN(0.5,-X) | sign(x) |
-1 if X <0, 0 or 1 if X > 0 |
| RZ | SIN(XZ) | sin(xz) | Sine function of
real or complex XZ |
| R | SINH(XZ) | sinh(xz) | Hyperbolic sine function of
real or complex XZ |
| I | SIZE(X) | length(x) |
Number of elements in array X |
| RZ | SQRT(XZ) | sqrt(xz) |
Square root of real or complex number |
| R | SUM(X) | sun(x) |
Sum of all elements in array X |