Select from previously-stored variables to use in the expression input.
- Calculator Area
Use the calculator to add standard mathematical operators and functions to the expression input.
You click on the buttons to enter the function into the expression input area. Clicking on the INV
button enables the alternate selections shown above the buttons. For examples on how to use the
calculator functions, see Processing Your Variables to Develop Calculated Data (p. 208) in this chapter.
Use the parenthesis to set off the hierarchy of operations, just as you would
in any algebraic expression. Many functions will automatically insert paren-
thesis when needed.
PARENTHESIS
Finds the largest of three variables (LARGE ) / Finds the smallest of three
variables (SMALL)
MAX / MIN
Forms a complex variable / Forms the complex conjugate of a variable
(CONJUG).
COMPLEX / CON-
JUGATE
Forms the natural log of a variable (NLOG) / Forms the exponential of a
variable (EXP).
LN / e^X
Stores active information from the expression input area into a memory
location / Recalls the memory location for repeated use in an expression.
STO / RCL
Computes the covariance between two variables (CVAR). Only available for
random vibration (PSD) analyses.
CVAR
Computes the response power spectral density (RPSD). Only available for
random vibration (PSD) analyses.
RPSD
Computes the response power spectrum (RESP) from time history data.
Available for transient analyses.
RESP
LOG Forms the common log of a variable (CLOG).
Forms the absolute value of a variable. For a complex number, the absolute
value is the magnitude (ABS) / Inserts the contents of a memory location
into an expression.
ABS / INS MEM
ATAN Forms the arctangent of a complex variable (ATAN).
Forms the square of a variable (PROD) / Forms the square root of a variable
(SQRT).
X^2 / SQRT
Use this key to make the alternate calculator functions (shown above the
buttons) available.
INV
Forms the derivative of a variable (DERIV) / Forms the integral of a variable
(INT1).
DERIV / INT
Forms a variable using only the real part of a complex variable (REALVAR)
/ Forms a variable using only the imaginary part of a complex variable
(IMAGIN).
REAL / IMAG
11 KEY NUMBER Enters real numbers into the expression input area.
PAD
/ Computes the quotient of two variables (QUOT).
* Computes the product of two variables (PROD).
- Computes the difference between two variables (ADD).
- Computes the sum of two variables (ADD).
Release 15.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information
The Time-History Variable Viewer
