What are the functions of Fortran?
What are the functions of Fortran?
A FORTRAN function is a procedure whose result is a single number, logical value, character string or array. There are two types of functions, intrinsic and user-defined. Intrinsic functions are those functions built into a FORTRAN language, such as SIN(x) or LOG(x).
What are the commands used in Fortran?
Use Fortran intrinsic functions EXP, ALOG, COS, ASIN, etc. to perform standard mathematical operations. Use PRINT *, or WRITE (*,*) to write to the screen and READ *, or READ (*,*) to input from the keyboard. Use OPEN(23,file=’filename. dat’) to open a file to read from or write to.
What are built in functions in Fortran?
Fortran Intrinsic Functions
| Function | Meaning | Return Type |
|---|---|---|
| ABS(x) | absolute value of x | INTEGER |
| REAL | ||
| SQRT(x) | square root of x | REAL |
| SIN(x) | sine of x radian | REAL |
What is the function of implicit none in Fortran?
The implicit none statement is used to inhibit a very old feature of Fortran that by default treats all variables that start with the letters i, j, k, l, m and n as integers and all other variables as real arguments.
What’s the difference between zfortran 90 and Fortran 90?
zFortran 90 has two types of subprograms,Fortran 90 has two types of subprograms, functions and subroutines. zAFortran90functionisafunctionlikethoseinA Fortran 90 function is a function like those in C/C++. Thus, a function returns a computed result via the function nameresult via the function name.
What are the logicaloperators in Fortran 90?
LOGICALOperators: 1/2 zThere are 5 LOGICAL operators in Fortran 90: .NOT., .OR., .AND., .EQV.and .NEQV. z.NOT.is the highest followed byis the highest, followed by
What are the types of subprograms in Fortran 90?
zFortran 90 has two types of subprograms,Fortran 90 has two types of subprograms, functions and subroutines. zAFortran90functionisafunctionlikethoseinA Fortran 90 function is a function like those in C/C++.
Which is true in Fortran 90 L1 or L2?
The results are that l1 is false, l2 and l3 are true. The Fortran 90 equivalent statements for the last three above are: l1 = x > y l2 = y < z l3 = x /= y Logical and arithmetic statements can be combined: l3 = 2*(x+z) < y The arithmetic operations are always all done before the logical operations.