FLTARR function returns a single-precision, floating-point vector or array.
Result = FLTARR(
, ..., D
The dimensions of the result. The dimension parameters can be any scalar expression. Up to eight dimensions can be specified.
Normally, FLTARR sets every element of the result to zero. Set this keyword to inhibit zeroing of the array elements and cause FLTARR to execute faster.
Create F, a 3-element by 3-element floating-point array with each element set to 0.0 by entering:
F = FLTARR(3, 3)