The voltage/current at the output terminals is a function of the voltage/current at the input terminals, dependent on the mathematical function of the block.
Note: 

If the argument of log(), ln(), or sqrt() becomes less than zero, the absolute value of the argument is used. If a divisor becomes zero or the argument of log() or ln() becomes zero, an error will result. Other problems may occur when the argument for a function in a partial derivative enters a region where that function is undefined. The argument of the trigonometric functions are in radians. 
Device  Description  

ABSI  Absolute value of input current.  
ABSV  Absolute value of input voltage.  
ABSVR  Absolute value of input differential voltage.  
ACOSHI  Inverse hyperbolic cosine of input current.  
ACOSHV  Inverse hyperbolic cosine of input voltage.  
ACOSHVR  Inverse hyperbolic cosine of input differential voltage.  
ACOSI  Inverse cosine of input current.  
ACOSV  Inverse cosine of input voltage.  
ACOSVR  Inverse cosine of input differential voltage.  
ADDI  Sum of input currents.  
ADDV  Sum of input voltages.  
ADDVR  Sum of input differential voltages.  
ASINHI  Inverse hyperbolic sine of input current.  
ASINHV  Inverse hyperbolic sine of input voltage.  
ASINHVR  Inverse hyperbolic sine of input differential voltage.  
ASINI  Inverse sine of input current.  
ASINV  Inverse sine of input voltage.  
ASINVR  Inverse sine of input differential voltage.  
ATANHI  Inverse hyperbolic tangent of input current.  
ATANHV  Inverse hyperbolic tangent of input voltage.  
ATANHVR  Inverse hyperbolic tangent of input differential voltage.  
ATANI  Inverse tangent of input current.  
ATANV  Inverse tangent of input voltage.  
ATANVR  Inverse tangent of input differential voltage.  
COSHI  Hyperbolic cosine of input current.  
COSHV  Hyperbolic cosine of input voltage.  
COSHVR  Hyperbolic cosine of input differential voltage.  
COSI  Cosine of input current.  
COSV  Cosine of input voltage.  
COSVR  Cosine of input differential voltage.  
DEGI  Returns to the output terminals the value of the current through the input terminals converted from radians to degrees.  
DEGV  Returns to the output terminals the value of the voltage present at the input terminals converted from radians to degrees.  
DEGVR  Returns to the output terminals the value of the voltage present at the input terminals converted from radians to degrees.  
DIFFERV  Differentiator.  
DIVI  Divide input currents.  
DIVV  Divide input voltages.  
DIVVR  Divide input voltages.  
EXPI  Exponential e^{x} of input current.  
EXPV  Exponential e^{x} of input voltage.  
EXPVR  Exponential e^{x} of input differential voltage.  
INTEGV  Integrator.  
LIMIT  Outputs a voltage constrained to the limits set by the LO and HI parameters.
Parameters:


LIMITV  The output is restricted to the range specified by the cntl_lower () and cntl_upper (+) inputs.  
LNI  Return the natural logarithm of input current. If the argument becomes less than zero, the absolute value of the argument is used.  
LNV  Return the natural logarithm of input voltage. If the argument becomes less than zero, the absolute value of the argument is used.  
LNVR  Return the natural logarithm of input differential voltage. If the argument becomes less than zero, the absolute value of the argument is used.  
LOGI  Calculates the decimal logarithm of input current. If the argument becomes less than zero, the absolute value of the argument is used.  
LOGV  Calculates the decimal logarithm of input voltage. If the argument becomes less than zero, the absolute value of the argument is used.  
LOGVR  Calculates the decimal logarithm of input differential voltage. If the argument becomes less than zero, the absolute value of the argument is used.  
MAXV  Maximum of two voltages.  
MAXVR  Maximum of two differential voltages.  
MINV  Minimum of two voltages.  
MINVR  Minimum of two differential voltages.  
MULTI  Multiply input currents.  
MULTV  Multiply input voltages.  
MULTVR  Multiply input voltages.  
POWI  Raise input current to power specified by EXP
parameter. Calculate x^{y}.
Parameters:


POWV  Raise input voltage to power specified by EXP
parameter. Calculate x^{y}.
Parameters:


POWVR  Raise input voltage to power specified by EXP
parameter. Calculate x^{y}.
Parameters:


PWRI  Raise input current to power specified by EXP
parameter. Use the absolute value of the input. Calculate x^{y}.
Parameters:


PWRV  Raise input voltage to power specified by EXP
parameter. Use the absolute value of the input. Calculate x^{y}.
Parameters:


PWRVR  Raise input voltage to power specified by EXP
parameter. Use the absolute value of the input. Calculate x^{y}.
Parameters:


PWRSI  Raise input current to power specified by EXP
parameter. If input current is negative, output current will also be
negative.
Parameters:


PWRSV  Raise input voltage to power specified by EXP
parameter. If input voltage is negative, output voltage will also be
negative.
Parameters:


PWRSVR  Raise input voltage to power specified by EXP
parameter. If input voltage is negative, output voltage will also be
negative.
Parameters:


RADI  Returns to the output terminals the value of the current through the input terminals converted from degrees to radians.  
RADV  Returns to the output terminals the value of the voltage present at the input terminals converted from degrees to radians.  
RADVR  Returns to the output terminals the value of the voltage present at the input terminals converted from degrees to radians.  
RMSV  Root Mean Square.  
SGNI  The output current is 1 volt if the current through the input terminals is negative, 1 volt if it is positive and zero if the input current is zero.  
SGNV  The output voltage is 1 volt if the voltage at the input terminals is negative, 1 volt if it is positive and zero if the input voltage is zero.  
SGNVR  The output voltage is 1 volt if the voltage at the input terminals is negative, 1 volt if it is positive and zero if the input voltage is zero.  
SINHI  Hyperbolic sine of input current.  
SINHV  Hyperbolic sine of input voltage.  
SINHVR  Hyperbolic sine of input differential voltage.  
SINI  Sine of input current.  
SINV  Sine of input voltage.  
SINVR  Sine of input differential voltage.  
SOFTLIM  Outputs a voltage constrained to the limits set by the LO and HI parameters.
Uses a continous curve limiting function (tanh).
Parameters:


SQRTI  Return the square root of input current. If the argument becomes less than zero, the absolute value of the argument is used.  
SQRTV  Return the square root of input voltage. If the argument becomes less than zero, the absolute value of the argument is used.  
SQRTVR  Return the square root of input differential voltage. If the argument becomes less than zero, the absolute value of the argument is used.  
STPI  If the current through the input terminals is negative then the output current is zero, otherwise the output current is 1 amps.  
STPV  If the voltage at the input terminals is negative then the output voltage is zero, otherwise the output voltage is 1 volt.  
STPVR  If the voltage at the input terminals is negative then the output voltage is zero, otherwise the output voltage is 1 volt.  
SUBI  The difference of input currents.  
SUBV  The difference of input voltages.  
SUBVR  The difference of input voltages.  
TANHI  Hyperbolic tangent of input current.  
TANHV  Hyperbolic tangent of input voltage.  
TANHVR  Hyperbolic tangent of input differential voltage.  
TANI  Tangent of input current.  
TANV  Tangent of input voltage.  
TANVR  Tangent of input differential voltage.  
UNARYI  Unary minus of input current.  
UNARYV  Unary minus of input voltage.  
UNARYVR  Unary minus of differential input voltage.  
URAMPI  If the current through the input terminals is negative then the output current is zero, otherwise the output current is equal to the input current.  
URAMPV  If the voltage at the input terminals is negative then the output voltage is zero, otherwise the output voltage is equal to the input voltage.  
URAMPVR  If the voltage at the input terminals is negative then the output voltage is zero, otherwise the output voltage is equal to the input voltage. 