foxBMS-UnitTests  1.0.0
The foxBMS Unit Tests API Documentation
foxmath.h File Reference

math library for often used math functions More...

#include "general.h"
#include <float.h>
#include <math.h>
#include <stdlib.h>
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Macros

#define UNIT_CONVERSION_FACTOR_1000_INTEGER   (1000)
 

Functions

float MATH_linearInterpolation (float x1, float y1, float x2, float y2, float x_interpolate)
 Linear inter-/extrapolates a third point according to two given points. More...
 
uint16_t MATH_swapBytes_uint16_t (uint16_t val)
 Swap bytes of uint16_t value. More...
 
uint32_t MATH_swapBytes_uint32_t (uint32_t val)
 Swap bytes of uint32_t value. More...
 
uint64_t MATH_swapBytes_uint64_t (uint64_t val)
 Swap bytes of uint64_t value. More...
 
float MATH_minimumOfTwoFloats (float value1, float value2)
 Returns the minimum of the passed float values. More...
 
int32_t MATH_AbsInt32 (int32_t value)
 Returns the absolute value of passed int32_t value. More...
 
int64_t MATH_AbsInt64 (int64_t value)
 Returns the absolute value of passed int64_t value. More...
 

Detailed Description

math library for often used math functions

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Author
foxBMS Team
Date
2018-01-18 (date of creation)
Updated
2018-01-18 (date of last update)
Prefix
MATH

This header file contains the different math function declarations. Currently the following functions are supported:

  • Slope
  • Linear interpolation

Definition in file foxmath.h.

Macro Definition Documentation

◆ UNIT_CONVERSION_FACTOR_1000_INTEGER

#define UNIT_CONVERSION_FACTOR_1000_INTEGER   (1000)

Add defines for unit conversions

Definition at line 72 of file foxmath.h.

Function Documentation

◆ MATH_AbsInt32()

int32_t MATH_AbsInt32 ( int32_t  value)

Returns the absolute value of passed int32_t value.

Parameters
[in]valueinteger value
Returns
absolute value or INT32_MAX if INT32_MIN is passed

Definition at line 105 of file foxmath.c.

◆ MATH_AbsInt64()

int64_t MATH_AbsInt64 ( int64_t  value)

Returns the absolute value of passed int64_t value.

Parameters
[in]valueinteger value
Returns
absolute value or INT64_MAX if INT64_MIN is passed

Definition at line 113 of file foxmath.c.

◆ MATH_linearInterpolation()

float MATH_linearInterpolation ( float  x1,
float  y1,
float  x2,
float  y2,
float  x_interpolate 
)

Linear inter-/extrapolates a third point according to two given points.

Parameters
x1x-value of point 1
y1y-value of point 1
x2x-value of point 2
y2y-value of point 2
x_interpolatex value of interpolation point
Returns
interpolated value (float)

Definition at line 69 of file foxmath.c.

◆ MATH_minimumOfTwoFloats()

float MATH_minimumOfTwoFloats ( float  value1,
float  value2 
)

Returns the minimum of the passed float values.

Parameters
[in]value1value 1
[in]value2value 2
Returns
minimum value

Definition at line 101 of file foxmath.c.

◆ MATH_swapBytes_uint16_t()

uint16_t MATH_swapBytes_uint16_t ( uint16_t  val)

Swap bytes of uint16_t value.

Parameters
valvalue to swap bytes: 0x1234 -> 0x3412

Definition at line 86 of file foxmath.c.

◆ MATH_swapBytes_uint32_t()

uint32_t MATH_swapBytes_uint32_t ( uint32_t  val)

Swap bytes of uint32_t value.

Parameters
valvalue to swap bytes: 0x12345678 -> 0x78563412

Definition at line 90 of file foxmath.c.

◆ MATH_swapBytes_uint64_t()

uint64_t MATH_swapBytes_uint64_t ( uint64_t  val)

Swap bytes of uint64_t value.

Parameters
valvalue to swap bytes: 0x1122334455667788 -> 0x8877665544332211

Definition at line 95 of file foxmath.c.