How to get rid of floating-point constants
53 views (last 30 days)
Show older comments
ssmith on 16 Nov 2021
Commented: James Tursa on 16 Nov 2021
I am trying to evaluate this expression but I get an error saying I have a floating-point constant. If I add another parenthases to separate the 7 and e, then I get an error saying I am missing more parenthases when I know I am not. Any one have advice on how to fix this equation?
A = 25 - (100 - 7exp(5+cos(pi/3)))
Dave B on 16 Nov 2021
The error you describe isn't what I'd expect, but you're certainly missing a *. Unless exp isn't the matlab function exp and is some e.g. symbolic variable?
A = 25 - (100 - 7*exp(5+cos(pi/3)))
James Tursa on 16 Nov 2021
@ssmith The parser sees the characters 7e... and thinks you are trying to enter a floating point number like 7e2, but when it gets to the x character it can't read the exponent so it throws the error. Basically you have invalid syntax which was misleading the parser.
Find more on Matrix Indexing in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!Start Hunting!