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Speed Tests... CFX v the Rest
Here are the results of some performance comparisons between Casio CFX9850G, Casio Algebra FX2.0, Sharp EL9600, Hewlett Packard 38G, TI82 and TI83+ models.
The total times (in seconds) for all four tests were:
CFX  74s  
FX2.0  86s  
EL9600  249s  
HP38G  197s  
TI82  76s  
TI83+  76s  
The following four tests were used to benchmark the execution speeds of some common calculator functions. Should the time to enter instructions/keypresses also be factored in? The individual test results are below!
INDIVIDUAL TESTS
FUNCTION GRAPHING
 The Test. With both axes scaled from 10 to 10, the calculators drew the 10 functions shown below:
 The Results (in seconds):
CFX  37s  
FX2.0  39s  
EL9600  76s  
HP38G  60s  
TI82  38s  
TI83+  37s  
STATISTICS
 The Test. Bivariate statistics. Before the test began, one list was filled with integers 1, 2, 3, ...., 200 and a second filled with 200 random numbers betwen 0 and 1. The test time was the sum of
the individual times to complete these operations:
 Draw a scatterdiagram
 Calculate the coefficients of the least squares regression line and correlation
 Draw the least squares regression line
 Calculate the bivariate summary statistics
 The Results (in seconds):
CFX  13s  
FX2.0  12s  
EL9600  40s  
HP38G  61s  
TI82  18s  
TI83+  25s  
CALCULUS
 The Test. Evaluate the sum of the three integrals shown below.
 The Results (in seconds):
CFX  4s  
FX2.0  5s  
EL9600  63s  
HP38G  47s  
TI82  4s  
TI83+  6s  
PROGRAMS/MATRICES
 The Test. Execute a simple program which loops 200 times, in each loop displaying the number of the loop, multiplying two 2x2 matrices (filled with single digit integers) and storing the result in
a third 2x2 matrix (no display of matrices).
 The Results (in seconds):
CFX  20s  
FX2.0  30s  
EL9600  70s  
HP38G  29s  
TI82  16s  
TI83+  8s  


