rdspe(row.i2.r, column.i2.r, num_chars.i2.r, minimum.r4.r,
	      maximum.r4.r, value.r4.r, status.i2.r)

	This routine reads "num_chars" characters from the alphanumeric
	screen in scientific notation starting at position
	("row","column"), converts them to a single precision floating
	point value and range checks the result.  Input data causing
	conversion errors or which are outside the specified range are
	echoed to the screen in white.  Valid conversions are echoed to
	the screen in green.

	row		value row
	column		starting value column
	num_chars	length of value field (maximum is 10)
	minimum		minimum acceptable value
	maximum		maximum acceptable value
	value		returned value  (In the event of a range error
			this value will be clamped to one of the specified
			limit values.  In the event of a conversion error
			the pre-call value is not altered.)
	status		returned conversion status
			(< 0 -> invalid characters for conversion,
			 OK -> valid entry (successful conversion and in range),
			 CLIB_SETTOMIN -> less than minimum
					  (result set to value of minimum),
			 CLIB_SETTOMAX -> greater than XMAX
					  (result set to value of maximum))

	This function requires the following include files:


	Related functions:

	rdspr(_c), rdspr8, rdspi(_c), rdspi4, input_value(_c),