Rapid evaluation of inequality expressions for electromagnetic propagation

A system comprising:

• data processing hardware;
• and
• memory hardware in communication with the data processing hardware, the memory hardware storing instructions that when executed on the data processing hardware cause the data processing hardware to perform operations comprising:
• obtaining a threshold loss value establishing a maximum electromagnetic (EM) path loss between a first geographical point and a second geographical point;
• for each of a plurality of EM paths between the first geographical point and the second geographical point:
• obtaining a minimum EM loss value for the corresponding EM path and a maximum EM loss value for the corresponding EM path;
• determining whether the maximum EM loss value for the corresponding EM path satisfies the threshold loss value;
• and
• when the maximum EM loss value for the corresponding EM path satisfies the threshold loss value, determining that an actual EM path loss value for the corresponding EM path between the first geographical point and the second geographical point satisfies the threshold loss value,
• wherein:
• each of the plurality of EM paths comprises one or more loss components;
• and
• for each of the plurality of EM paths:
• the minimum EM loss value comprises a sum of a minimum of each of the one or more loss components of the corresponding EM path;
• and
• the maximum EM loss value comprises a sum of a maximum of each of the one or more loss components of the corresponding EM path.