Canon F792sga Owners Manual

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Important precaution when using “Solve” function:• The following functions    ,     , ∑,    , Pol, Rec, Q…r, Rand, i-Rand or 
  multi-statement are not allowed to input into an equation for SOLVE 
  function.
• Since SOLVE function uses Newton’s Method to obtain the solution, 
  even if there are multiple solutions, only one of them will be shown as 
  the solution.
• SOLVE function may not be able to obtain a solution because of preset
  initial value of the solution variable. In case this happens, try to change 
  the initial value of the solution variable.
• SOLVE function may not be able to find the correct solution, even if the 
  solution(s) exists.
• If an equation contains input functions that include an open parenthesis, 
  do not omit the closing parenthesis.
• It will show “Variable ERROR” when the expression does not contain the 
  variable that you want to solve.
• Newton’s Method may have problems for solving the following types of 
  functions, for example y = e x
, y =     , y = sin(x), y =  x, etc.• In case the equation takes long time for solving, the calculator will display   “PROCESSING” screen, you can cancel the processing of SOLVE 
  operation by pressing the        key.
               
                
                      
        
X=         B2C
B? 0
C? 0
Solve for X 0
X=       B
2C
X=                           523.5987756
L
-R =                                        0
Display 
Key in Operation 
 Initial value 
1
3
 Solution variable  Solution 
1
3
Example: To solve X=       B2C (when B=5; C=20)  1
3
d
dx
• The Precision of Solution shows the result when the obtained 
  solution is assigned to the solution variable. The precision of the 
  obtained solution is higher if this value is closer to zero.
Continue Screen
• SOLVE performs convergence a preset number of times. If it 
  cannot find a solution, it displays a confirmation screen that shows 
 
“Continue: [=]”, asking if you want to continue. Press       to continue 
  or        to cancel the SOLVE operation.
1x√
 Precision of solution  
						

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Example: For the equation Y = 5x2 – 2x +1, calculate the value of Y 
if x = 5 or x = 7. 
!  The         stored expression will be cleared when you start a new 
calculation, change into another mode, or turn off the calculator.
(COMP MODE)0
Y=5X2–X+1 0
Y=5X
2–X+1 11 6
Y=5X
2–X+1 232
Display
Key in operation
LINE MODE:
(COMP MODE) 0
d/dx(sin(3X+30)
                         0.02617993878
Display
Key in operation
 CALC function is a memory zone with a maximum of 79 steps 
to store a single calculation expression which can be recalled 
and calculated a number of times with different values. 
 After inputting the calculation expression and pressing        , 
the calculator will request for the current value of your input 
variables.
 CALC function can only be used in COMP mode or CPLX mode.
CALC Function
 Differential Calculations   Differential Calculations can be used in the COMP mode only.
  To perform a differential calculation, you have to input the
  expression in the form of:
 
                                 f(x)         a         ∆x 
 
Your calculator performs differential calculations by aprroximating
   the derivative based on centered difference approximation.
Example: To determine the derivative at point x = 10,  ∆x = 10
-8, for 
the function f(x) = sin(3x + 30)
•  f(x)  : Function of X. (All non-X variables are treated as constants.)•  a  :  Differential point. 
•  ∆x :  Tolerance  (calculation precision); for Line mode only
LINE MODE: 
						

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0
d/dx(sin(3X+30)
                         
0.02617993878
Display
Key in operation
   0
236
(5X^(4)+3X2+2X
  Integration Calculations 
Integration Calculations can be used in the COMP mode only.
  To perform an integration calculation you are required to input the  following elements:
                           f(x)        a        b        n   
• 
f(x)  : Function of X. (All non-X variables are treated as
     constants.)
•  a, b  : The integration range of the definite integral. 
•  n  : Tolerance; for Line Mode only
  The integration calculation is based on Gauss-kronrod method.
  The internal integration calculations may take considerable time
  to complete. For some cases, even after considerable time is
  spent performing a calculation, the calculation results may be
  erroneous. Particularly when significant digits are less than 1, 
  an ERROR might occur.
Example: Perform the integration calculation , with n = 4.
!  You can leave out the ∆x in the differential expression and the 
calculator will automatically substitute a value for ∆x.
!  The smaller the entered value ∆x is, the longer the calculation time will  be with more accurate results, the larger the entered value ∆x is, the 
shorter the calculation time will be with comparatively less accurate 
results.
!  Inaccurate results and errors can be caused by the following : 
  • Discontinuous points in x values 
  • Extreme changes in x value
  • Inclusion of the local maximum point and local minimum point in 
    x values.  
  • Inclusion of the inflection point in x values
  • Inclusion of undifferentiable points in x values
  • Differential calculation results approaching zero
!  When performing differential calculations with trigonometric functions,  select radian (Rad) as the angle unit setting.
!  Log
ab, i~Rand(, Rec( , Pol(, ∫(, d/dx(, ∑(, ∏(, Max( and Min( functions 
cannot join in differential calculations.
!  You can cancel the processing of differential calculation by pressing 
the         key.
LINE MODE: 
						

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Creating a Matrix  Press                to enter Matrix mode.
  Press                 to use the MATX application; press      /      for  next / previous pages . 
 Press         to exit the matrix creating screen.
[1]  Dim 
[2]  Data 
[3]  MatA to MatD 
[4]  MatAns 
[5]  Det 
[6]  Trn 
[7]  Ide 
[8]  Adj 
[9]  Inv  Specify the Matrix memory A to D, and specify the 
dimension (up to 4 x 4)
Specify the matrix A-D for editing and corresponding 
matrix element
Select matrix A to D
Calculation Answer of Matrix & Store into MatAns 
Determinate function of Matrix A-D
Transposed data in Matrix A-D
Identity of matrix 
Adjoint to Matrix 
Inverse of Matrix Description
Item
Press [      ]
or [      ] key
Apps
   Before starting matrix calculations, you have to create one matrix 
or a maximum of four matrices named A, B, C and D at one time. 
The matrix dimension can be up to 4x4.
  The matrix calculation results are stored into the MatAns memory 
automatically. You can use the matrix MatAns memory for any 
subsequent matrix calculations.
Matrix Calculations Press                to enter Matrix mode.
!  You can leave out the n in the Integration expression and the 
calculator will automatically substitute a value for n.
! 
The smaller the entered value n is, the longer the calculation time will be 
with more accurate results, the larger the entered value n is, the shorter 
the calculation time will be with comparatively less accurate results.
!  When performing integration calculations with trigonometric functions,  select radian (Rad) as the angle unit setting.
!  Log
ab, i~Rand(, Rec( , Pol(, ∫(, d/dx(, ∑(, ∏(, Max( and Min( functions 
cannot join in integration calculations.
!  A “Time Out” error occurs when an integration calculation ends without 
  the ending condition being fulfilled.
!  You can cancel the processing of integration calculation by pressing 
the        key. 
						

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Editing Matrix Data  Press                         (Data), then specify the matrix A, B, C or D 
for editing and the corresponding matrix element indicator will be 
displayed. 
  Input the new value and press        to confirm the edit. 
  Press        to exit the matrix editing screen.
    Matrix Addition, Subtraction and Multiplication
Example: MatA =                  ,  MatB =                  , MatA x MatB=?
!  Matrices which will be added, subtracted, or multiplied must be the  same size. An error occurs if you try to add, subtract, or multiply 
matrices whose dimensions are different from each other. For 
example, you cannot add or subtract a 2 x 3 to or from a 2 x 2 
matrix. 1   2   3
4   5   6
7   8   99   8   7
6   5   4
3   2   1
Display
Key in operation
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    Obtain the Determinant of a Matrix
Example:  Obtain the determinant of Matrix C =                      
                                 
Example: Multiple Matrix C =                by 2         
 3   -2
-1    5
 6   
-4
-2    10
10  -5    3
- 4    9    2
1     7   -3
    Obtain the Scalar Product of a MatrixEach position in the matrix is multiplied by a single value, resulting in 
a matrix of the same size. 
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!  An error occurs if you obtain the determinant of a non-square 
matrix. 
						

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    Transpose a Matrix
Example:  Transpose Matrix B =                     9   5
6   2
8   4
    Identity of Matrix 
Example:  Identity of Matrix D  9   6   8
5   2   4
Display
Key in operation
Display
Key in operation
1     0
0    1
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    Invert a Matrix
Example: Inverting Matrix C =             
                  
    Adjoint of Matrix 
Example:  Adjoint Matrix A                     < Result:                 >  
8   2
3   6
0.142857142    -0.047619047
-0.071428571   0.19047619
Display
Key in operation
2     3
4    55    - 3
-4    2
Display
Key in operation
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    Determine the Absolute Value of a Matrix
Example: To determine the absolute value of the inverted Matrix C in the previous example. 
  Vector Calculations
 Press                to enter Vector mode. 
  Before starting vector calculations, you have to create one or  more vectors named A, B, C and D (maximum four vectors at one 
time). 
  The vector calculation results are stored into VctAns memory 
automatically. You can use the vector VctAns memory for any 
subsequent vector calculations.
Creating a Vector 
  Press                to enter Vector mode. 
 
  Press                to use the Vector tool; 
Display
Key in operation
Abs
  Press         to exit the matrix creating screen .
[1]  Dim 
[2]  Data 
[3]  VctA to VctD 
[4]  VctAns 
[5]  Dot Specify the Vector Name A to D, and specify the 
dimension (2D or 3D)
Specify the Vector A-D for editing and corresponding 
matrix elements
Select Vector A to D 
Calculation Answer of Vector stored into VctAns 
Input the “▪” command for obtaining the dot product 
of a vector outside VCTR MODE AppsDescription
Item
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Editing Vector Elements Press                        (data), then specify the Vector A, B, C or D 
for editing, and the corresponding vector element indicator will be 
displayed. 
  Input the new value and press        to confirm the edit. 
  Press         to exit the vector editing screen.
    Vector Addition and Subtraction Example: Vector A = (9,5), Vector B = (7,3), Vector A – Vector B =?
!  An error occurs if you try to add or subtract vectors whose  dimensions are different from each other. For example Vector A 
(a,b,c) cannot add or subtract to or from Vector B (d,e).
Display
Key in operation
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