TS Calc 1.8.1 | macOS | 9 mb The mathematical equations tool . TS Calc implements numeric resolution of calculation models you can use for any mathematical technical problems. It is a complete different approach to solve math problems respect to the usual one using a spreadsheets. Document based. You can create a different documents for any model to solve. 
WHAT TO INSERT IN A DOCUMENT    A list of equations solving the problems
    A list of variables used by equations (also auto inserted 			  			 	   			 	  		  		  		  		  		  		  		  		   			 	   		  	   		   	  		 		   	 			   		 			  		  		  	 			   		  	   		   	  		 		   	 			   		  	   		   	  		 	 				 while you input equations)
    A list of constants used by the equations (also auto inserted while you input equations)
    A description of the problem in RTFD with rich text and images
Compatibility: macOS 10.11 or later
Homepage:
http://www.ecleti.com