mekiMath

Add2

Add2 performs sum of inputs.

\[Out = In1 + In2\]

Parameters:

• Out (real) – Output value of adding In1 and In2

• In1 (real) – Input value 1

• In2 (real) – Input value 2

Avg10

Avg10 performs the division in 10 for the last 10 input value. It will sample current value again if it does not change in max time (ms) duration.

\[Out = \frac{ΣIn} {10}\]

Parameters:

• Out (real) – Average output value of last 10 In

• In (real) – Input value

• MaxTime (integer) – Maximum time of sampling period

AvgN

AvgN perform the equation below. The purpose is to make the output to have certain proportion inherits the input value and the previous output value.

\[Out = 1* \frac{In}{DF} + \frac{(DF-1)*Out}{DF}\]

DF=Damping Factor

For example, In=A, Last output=B, DF =16

\[Out = \frac{A}{16} + \frac{15B}{16}\]

Parameters:

• Out (real) – Average output value with damping factor

• In (real) – Input value

• DampingFactor (integer) – Decay factor (1-max)

Ceiling

Ceiling performs the least integer that is greater than or equal to the input.

\[Out = ⌈In⌉\]

Parameters:

• Out (real) – Ceiling output of In

• In (real) – Input value

Div2

Div2 performs division operation.

\[Out = \frac{dividend} {divisor}\]

Parameters:

• Out (real) – Result of divided Divided by Divisor

• Dividend (real) – Input value

• Divisor (real) – Input value

• Div0 (boolean) – Equal to true when dividend=0, otherwise Div0=false (read only)

Exp

Exp performs the exponential function on the input.

\[Out = e^{In}\]

Parameters:

• Out (real) – Exponential value of In

• In (real) – Input value

Fabs

Fabs performs the absolute value on the input.

\[Out = |{In}|\]

Parameters:

• Out (real) – Absolute value of In

• In (real) – Input value

FloatOffset

FloatOffset adjusts the output value on top of the offset.

\[Out = In + offset\]

Parameters:

• Out (real) – Output value off adding In and Offset

• In (real) – Input value

• Offset (real) – Input value

Floor

Floor performs the greatest integer that is less than or equal to the input.

\[Out = ⌊In⌋\]

Parameters:

• Out (real) – Floor result of In

• In (real) – Input value

Inverse

Inverse takes the inverse of input.

\[Out = \frac{1}{In}\]

Parameters:

• Out (real) – Inverse of In

• In (real) – Input value

Log

Log performs the natural logarithm of input.

\[Out = log(In)\]

Parameters:

• Out (real) – Natural logarithm of In

• In (real) – Input value

Log10

Log10 performs the base 10 logarithm of input.

\[Out = log_{10}(In)\]

Parameters:

• Out (real) – Base 10 logarithm of In

• In (real) – Input value

Max

Max compares two input values, thus outputs the larger one.

Parameters:

• Out (real) – Output the higher value in between In1 and In2

• In1 (real) – Input value 1

• In2 (real) – Input value 2

Min

Min compares two input values, thus outputs the smaller one.

Parameters:

• Out (real) – Output the lower value in between In1 and In2

• In1 (real) – Input value 1

• In2 (real) – Input value 2

MinMax

MinMax records the maximum and the minimum of the input value, min out outputs the minimum record while max out outputs the maximum record respectively, until they are updated.

Parameters:

• MinOut (real) – Min recorded In value

• MaxOut (real) – Max recorded In value

• In (real) – Input value

• Reset (boolean) – Reset record value back to 0

Mul2

Mul2 performs multiplication operation.

\[Out = In1 × In2\]

Parameters:

• Out (real) – Multiplication of In1 with In2

• In1 (real) – Input value 1

• In2 (real) – Input value 2

Pow

Pow performs the y power of x.

\[Out = X^{Y}\]

Parameters:

• Out (real) – Result of Y power of X

• X (real) – Input value 1

• Y (real) – Input value 2

Neg

Neg negates the input value.

\[Out = - In\]

Parameters:

• Out (real) – Negative value of In

• In (real) – Input value

Round

Round rounds the input value, can retain some digits according to the rounding algorithm.

Parameters:

• Out (real) – Rounding In value with DecimalPlaces

• In (real) – Input value

• DecimalPlaces (integer) – Retains decimal point

Squareroot

Squareroot performs square rooted of input.

\[Out = \sqrt{In}\]

Parameters:

• Out (real) – square rooted value of In

• In (real) – Input value

Sub2

Sub2 performs subtraction operation.

\[Out = minuend - subtrahend\]

Parameters:

• Out (real) – Subtraction of Minuend to Subtrahend

• Minuend (real) – Input value

• Subtrahend (real) – Input value

TimeAvg

TimeAvg averages “In” over the configured time. The actual time is marked in a resolution of scan period such that number of sample. The out is NOT a running average, this object caches the average over the previous time as the out value, and updates out every “time” ms. Until a full time cycle has elapsed, the out is set to the average off all samples collected up until that point.

\[Out = \frac{Time * In}{ScanPeriod}\]

Parameters:

• Out (real) – Average of In over configured time

• In (real) – Input value to be taken average

• Time (integer) – The time period over which to average the in value to get the out value

• ScanPeriod (integer) – Cycle of sampling data, units is ms