If the input is x, find a and b from the following equation: x = a*2^b.
Hint: b is an integer while x and a are real numbers.
Solution Stats
Problem Comments
5 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers57
Suggested Problems
-
What is the distance from point P(x,y) to the line Ax + By + C = 0?
560 Solvers
-
Try 1.5.4: Celsius to Fahrenheit
873 Solvers
-
378 Solvers
-
Switch matrix to a column vector
377 Solvers
-
516 Solvers
More from this Author11
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
The solutions to this equation are not unique. Based on the requirements given there is an entire solution space for each possibility. For example 1.024E4*2^-10 = 10 but that is not a valid answer. Basically there is a degree of freedom issue here.
agree,solutions is way way more than one.
b=0. a=x.
Brute-force on b, while looking for solutions with a restricted to the interval [-1,1] works. And I agree there is more than one solution. The author should specify what is the interval for valid solutions or accept more than one valid answer (which is easy to verify).
Just a heads up - OP expects solvers to use a particular function