# How avoid exponential notation in compose

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Luca Re on 22 Jun 2024
Commented: Luca Re on 24 Jun 2024
hi, i want to avodi exponential notation
compose("%d",daily)
...
"-250"
"1.562500e+02"
"-3.750000e+01"
correct is .
"-250"
"156.25"
"-37.5"

halleyhit on 22 Jun 2024
Edited: halleyhit on 22 Jun 2024
compose("%f",daily)
or more specific
compose("%4.4f",daily)
seems working

Stephen23 on 24 Jun 2024
Edited: Stephen23 on 24 Jun 2024
"How avoid exponential notation in compose"
Explanation: the %d conversion is for integer values. Are all of your data integer valued? (hint: no). The documentation states "If you specify a conversion that does not fit the data, such as a text conversion for a numeric value, MATLAB® overrides the specified conversion, and uses %e." By definition the %e conversion uses exponent notation.
Solution: specify a more suitable conversion, e.g. %g
daily = [-250; 156.25; -37.5];
compose("%.5g",daily)
ans = 3x1 string array
"-250" "156.25" "-37.5"
Luca Re on 24 Jun 2024
thank