format numbers in plot

hi

i am using text command to show variable value in plot

but i am not able to format this variable (format short)

text(5,3,['variable value=',char(a)]) i get variable value = 0.324546494654894846156486494646

so how to format it to 0.32454

Answer 1

[Daniel Shub]

instead of your char(a)

I would use

num2str(double(a), 6)

or

 sprintf('%0.6f', double(a))

[Haris Hameed]

i have used both they give this error

??? Error using ==> sprintf

Function is not defined for 'sym' inputs.

[Daniel Shub]

See my edit. I missed your "a" was a sym. You need to convert the sym to a double first.

[Haris Hameed]

thankx it works