How to Fix Overflow Error in FORTRAN Matrix Program?

In summary, the conversation is about a FORTRAN program that is encountering an overflow error in a specific scenario. The program involves functions, summation, and matrix manipulation, and the dimension is set by user input. The error occurs when the dimension is more than 7, and the person is seeking advice on how to resolve the issue. However, further details, such as the code generating the error, would be needed for a proper diagnosis.
  • #1
shasa
7
0
hi

i have over flow error in FORTRAN for a program that do some function and summation on matrix elements , then multiply them and at last find its determinant, the dimension is SET by input

when it is more than 7 i have this error

what should i do?
 
Technology news on Phys.org
  • #2
shasa said:
hi

i have over flow error in FORTRAN for a program that do some function and summation on matrix elements , then multiply them and at last find its determinant, the dimension is SET by input

when it is more than 7 i have this error

what should i do?

IMO, your description is too vague for anyone to be able to diagnose the problem. If you show the code that is generating the error, maybe we can help.
 

1. What is an "overflow error" in Fortran?

An overflow error in Fortran occurs when a program tries to store a number in a variable that is too large for that variable's data type. This can result in the data being truncated or lost, leading to incorrect results.

2. How can I prevent overflow errors in my Fortran code?

To prevent overflow errors, you can use larger data types for your variables or use error-checking techniques to ensure that the data being input will not cause an overflow. You can also use conditional statements to handle potential overflow situations.

3. Can an overflow error cause my Fortran program to crash?

Yes, an overflow error can cause your Fortran program to crash. When an overflow occurs, the program may behave unexpectedly or terminate abruptly, which can result in a crash. It is important to handle potential overflow situations in your code to prevent crashes.

4. How do I debug an overflow error in Fortran?

To debug an overflow error in Fortran, you can use a debugger tool that allows you to step through your code and check the values of variables at different points. You can also use print statements to display the values of variables and track where the overflow occurs.

5. Are there any built-in functions in Fortran to handle overflow errors?

Yes, Fortran has built-in functions such as MAX and MIN that can be used to check the range of values for a variable. Additionally, the IEEE module provides functions for handling overflow and underflow errors in floating-point calculations.

Similar threads

Fortran Errors in Fortran code for solving Laplace's equation in 3D
    • Programming and Computer Science
Replies
4
Views
607
Fortran Runtime error while reading file in fortran90
    • Programming and Computer Science
Replies
5
Views
4K
Fortran Modifying a library not to stop at runtime errors
    • Programming and Computer Science
Replies
9
Views
1K
Fortran Integer overflow on assignment
    • Programming and Computer Science
Replies
4
Views
1K
Fortran Matrix times vector in Fortran
    • Programming and Computer Science
Replies
4
Views
7K
Fortran Input/Output error with error code -5
    • Programming and Computer Science
Replies
6
Views
2K
Python Hexadecimal errors when hitting back-space while using inquirer module
    • Programming and Computer Science
Replies
1
Views
1K
How to read a column of data into Fortran without arrays? (Fortran 77)
    • Engineering and Comp Sci Homework Help
Replies
7
Views
1K
I'm getting garbage values while reading matrices from a file
    • Programming and Computer Science
Replies
12
Views
1K
Fortran Help with Debugging Fortran Code | Plato Compiler
    • Programming and Computer Science
Replies
4
Views
2K

Hot Threads

Recent Insights

Back
Top