Many of our presidents were trained in or used math at some point in  their careers. An interesting note is that when someone has a productive  disposition toward math, i.e. sees the value of and confidence in using  mathematics to resolve problems they will use it to resolve many  problems, not apparently related to math. It becomes a way of thinking.  In this short note we look at some of the US presidents so disposed.  Mathematical training was of course an important part of the curriculum  as taught to many of our earlier presidents. They were schooled in  algebra and geometry. Calculus is another matter. Let's look at some of  them.     George Washington   George Washington (1732-1799) was early in his career a surveyor.  The mathematics of surveying includes foremost the techniques of planar  measurement. These include the right triangle, oblique angles and  triangles, azimuth, angles, bearing, bearing intersections, distance  intersections, coordinate geometry, law of sines ...
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