# ftocv¶

## Purpose¶

Converts a matrix containing floating point numbers into a matrix containing the decimal character representation of each element.

## Format¶

x_cv = ftocv(x, field, prec)
Parameters:
• x (NxK matrix) – numeric data to be converted

• field (scalar) – minimum field width.

• prec (scalar) – the numbers created will have prec places after the decimal point.

Returns:

x_cv (NxK character matrix) – contains the decimal character equivalent of the corresponding elements in x in the format defined by field and prec.

## Examples¶

### Basic examples¶

// Field width for 7 characters (including '.'). Display 5 characters after decimal point
x = ftocv(1.23456789, 7, 5);

// Print character vector
print $x;  The code above will return the following output: 1.23457  x = ftocv(1.23456789, 4, 2); print$x;


The code above will return the following output:

1.23

x = ftocv(1.23456789, 6, 3);
print $x;  The code above will return the following output: 01.235  ### Combining text with numbers¶ y = { 6, 7, 8, 9, 10 }; /* ** Combine 'beta' with the vector of numbers in 'y' ** Use 2 characters for each number with 0 after the decimal point */ x = 0$+ "beta" $+ ftocv(y, 2, 0); /* ** Since the output is a character vector the dollar ** sign ($) must be used in front of the variable for printing
*/
print $x;  results in the following output: beta06 beta07 beta08 beta09 beta10  Notice that the 0$+ above was necessary to force the type of the result to matrix because the string constant "beta" would be of type string. The left operand in an expression containing a \$+ operator controls the type of the result.

## Remarks¶

• To convert numbers to strings, or string arrays, use ntos() instead.

• Character vectors, as returned by ftocv(), can only hold 8 characters. Therefore, the field and prec inputs may not be greater than 8.

• If a number is narrower than field, it will be padded on the left with zeros.

• If $$prec = 0$$, the decimal point will be suppressed.