H-floating-point-base OpenVMS usage:floating_point type: H_floating access: read only mechanism: by value Base. The H-floating-point-base argument is an H-floating number containing the base. H-floating-point-exponent OpenVMS usage:floating_point type: H_floating access: read only mechanism: by value Exponent. The H-floating-point-exponent argument is an H-floating number that contains the H-floating exponent.