These notes were developed as I was learning how to program in Fortran 90. Matlab is a great scripting language; however, when you need to do a lot of numerical computations, nothing beats Fortran (or C).
Here, I list below code snippets from Matlab and Fortran 90 to illustrate similiarities and differences between the syntax of the two languages.
Comments
| Matlab |
Fortran 90 |
Uses % |
Uses ! |
Continuation of programming line
| Matlab |
Fortran 90 |
A = 174.5 * year ...
+ count / 100
|
A = 174.5 * year &
+ count / 100
|
If Condition
| Matlab |
Fortran 90 |
if <condition>
<statements>
elseif <condition>
<statements>
else
<statements>
end
|
if (<condition>) then
<statements>
else if (<condition>) then
<statements>
else
<statements>
end do
|
For Loop
| Matlab |
Fortran 90 |
for i = 1:5
<statements>
end
|
do i = 1, 5
<statements>
end do
|
While Loop
| Matlab |
Fortran 90 |
while (<condition>)
<statement>
end
|
do while (<condition>)
<statements>
end do
|
Function
| Matlab |
Fortran 90 |
function y = foo(x)
<statement>
y = <value>
end
|
function foo(x)
real :: x
real :: foo
foo = <value>
end function foo
|
Relational Operators
| Matlab |
Fortran 90 |
<
|
<
|
>
|
>
|
<=
|
<=
|
>=
|
>=
|
==
|
==
|
~=
|
/=
|
Logical Operators
| Matlab |
Fortran 90 |
~
|
.not.
|
||
|
.or.
|
&&
|
.and.
|
==
|
.eqv.
|
~=
|
.neqv.
|
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