In solving engineering problems, one may not have the luxury of time. Most situations demand immediate results. The price of falling behind schedule is costly and demeaning to one's reputation. Therefore, every bit of precaution must be taken to expedite calculations. The following introduces methods to tackle these problems speedily using a Casio calculator FX-991ES and FX-991EX.
►For algebraic problems where you need to find the exact value of a dependent or independent variable, just use the CALC or [ES] Mode 5 functions or [EX] MENU A functions.
►For definite differentiation and integration problems, simply use the d/dx and integral operators in the COMP mode.
►For models that follow the differential equation: dP/dx=kt and models that follow a geometric function(i.e. A*B^x).
[ES]
-Simply go to Mode 3 (STAT) (5) e^x
-For geometric functions Mode 3 (STAT) 6 A*B^x
-(Why? Because the solution to the D.E. dP/dx=kt is an exponential function e^x.
When we know the boundary con…
►For algebraic problems where you need to find the exact value of a dependent or independent variable, just use the CALC or [ES] Mode 5 functions or [EX] MENU A functions.
►For definite differentiation and integration problems, simply use the d/dx and integral operators in the COMP mode.
►For models that follow the differential equation: dP/dx=kt and models that follow a geometric function(i.e. A*B^x).
[ES]
-Simply go to Mode 3 (STAT) (5) e^x
-For geometric functions Mode 3 (STAT) 6 A*B^x
-(Why? Because the solution to the D.E. dP/dx=kt is an exponential function e^x.
When we know the boundary con…
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