Casio FX-9750GII-SC User Guide - Page 86

Metric Conversion Calculations, Complex Number Calculations with a Matrix - conversion errors

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S Complex Number Calculations with a Matrix Example To determine the absolute value of a matrix with the following complex number elements: -1 + i 1 + i Matrix D = 1 + i -2 + 2i *(E)(NUM)(Abs) *(MAT)(Mat)?Q(D)U • The following complex number functions are supported in matrices. i, Abs, Arg, Conjg, ReP, ImP, a+bi, rQ Note, however, that "a+bi" and "rQ" cannot be used in the Linear input/output mode. Matrix Calculation Precautions • Determinants and inverse matrices are subject to error due to dropped digits. • Matrix operations are performed individually on each cell, so calculations may require considerable time to complete. • The calculation precision of displayed results for matrix calculations is p1 at the least significant digit. • If a matrix calculation result is too large to fit into Matrix Answer Memory, an error occurs. • You can use the following operation to transfer Matrix Answer Memory contents to another matrix (or when Matrix Answer Memory contains a determinant to a variable). MatAns m Mat A In the above, A is any variable name A through Z. The above does not affect the contents of Matrix Answer Memory. 9. Metric Conversion Calculations You can convert values from one unit of measurement to another. Measurement units are classified according to the following 11 categories. The indicators in the "Display Name" column show the text that appears in the calculator's function menu. Display Name Category LENG Length AREA Area VLUM Volume TIME Time Display Name Category Display Name Category TMPR Temperature PRES Pressure VELO Velocity ENGY Energy/Work MASS Mass PWR Power FORC Force/Weight 2-48

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2-48
Complex Number Calculations with a Matrix
Example
To determine the absolute value of a matrix with the following complex
number elements:
Matrix D =
(
)
(NUM)
(Abs)
(MAT)
(Mat)
(D)
• The following complex number functions are supported in matrices.
i
, Abs, Arg, Conjg, ReP, ImP,
a+b
i
,
r
Note, however, that “
a+b
i
” and “
r
” cannot be used in the Linear input/output mode.
Matrix Calculation Precautions
• Determinants and inverse matrices are subject to error due to dropped digits.
• Matrix operations are performed individually on each cell, so calculations may require
considerable time to complete.
• The calculation precision of displayed results for matrix calculations is
1 at the least
significant digit.
• If a matrix calculation result is too large to fit into Matrix Answer Memory, an error occurs.
• You can use the following operation to transfer Matrix Answer Memory contents to another
matrix (or when Matrix Answer Memory contains a determinant to a variable).
MatAns
Mat
In the above,
is any variable name A through Z. The above does not affect the contents of
Matrix Answer Memory.
9. Metric Conversion Calculations
You can convert values from one unit of measurement to another. Measurement units are
classified according to the following 11 categories. The indicators in the “Display Name”
column show the text that appears in the calculator’s function menu.
Display Name
Category
Display Name
Category
Display Name
Category
LENG
Length
TMPR
Temperature
PRES
Pressure
AREA
Area
VELO
Velocity
ENGY
Energy/Work
VLUM
Volume
MASS
Mass
PWR
Power
TIME
Time
FORC
Force/Weight
–1 +
i
1 +
i
1 +
i
–2 + 2
i
–1 +
i
1 +
i
1 +
i
–2 + 2
i