read the next float from a file
file descriptor or filename
The ReadNextFloat(file) command attempts to read a float from file. The ReadNextFloat function skips characters until it finds a valid float. It then reads the float and returns it. If no characters match a valid float, then the end of file is reached and NULL is returned.
If file is the name of a file that has not been opened, Maple attempts to open the file before attempting to read the float.
An error is raised if file is not a valid descriptor or if it is the name of a file that cannot be opened.
FileToolsTextWriteString⁡testfile,2.73 to 3.14 for
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