user: 请将以下的汇编代码转换成C语言代码：

```asm
<target_phi>:
  endbr64
  push   %rbx
  pxor   %xmm0,%xmm0
  mov    %rsi,%rbx
  sub    $0xa0,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x98(%rsp)
  xor    %eax,%eax
  movaps %xmm0,0x70(%rsp)
  test   %edx,%edx
  jle    L28
  movss  D75(%rip),%xmm5
  cmp    $0x1,%edx
  je     L86
  movss  %xmm5,0x74(%rsp)
  cmp    $0x2,%edx
  je     L86
  movl   $0x3d638e39,0x78(%rsp)
  cmp    $0x3,%edx
  je     L86
  movl   $0x3d638afd,0x7c(%rsp)
L86:
  movss  0x74(%rsp),%xmm7
  movss  0x78(%rsp),%xmm1
  pxor   %xmm10,%xmm10
  movss  0x7c(%rsp),%xmm0
L82:
  movss  D69(%rip),%xmm2
  movss  (%rdi),%xmm3
  movss  0x4(%rdi),%xmm4
  movss  D345(%rip),%xmm6
  movss  D231(%rip),%xmm9
  subss  %xmm2,%xmm3
  subss  %xmm2,%xmm4
  movss  0x8(%rdi),%xmm2
  subss  D162(%rip),%xmm2
  mulss  %xmm5,%xmm3
  mulss  %xmm1,%xmm2
  mulss  0x8(%rbx),%xmm1
  mulss  %xmm7,%xmm4
  mulss  (%rbx),%xmm5
  addss  %xmm6,%xmm3
  mulss  0x4(%rbx),%xmm7
  addss  %xmm6,%xmm2
  movaps %xmm1,%xmm11
  movss  0xc(%rdi),%xmm1
  subss  D357(%rip),%xmm1
  addss  %xmm6,%xmm4
  mulss  %xmm3,%xmm9
  movaps %xmm2,%xmm8
  movaps %xmm2,%xmm13
  mulss  %xmm0,%xmm1
  mulss  0xc(%rbx),%xmm0
  movaps %xmm4,%xmm12
  mulss  %xmm2,%xmm8
  movss  %xmm9,0xc(%rsp)
  movss  D74(%rip),%xmm9
  addss  %xmm6,%xmm1
  mulss  %xmm3,%xmm9
  movaps %xmm4,%xmm6
  movss  %xmm0,0x24(%rsp)
  movss  D191(%rip),%xmm0
  mulss  %xmm4,%xmm6
  mulss  %xmm8,%xmm13
  mulss  %xmm3,%xmm0
  movaps %xmm1,%xmm14
  mulss  %xmm1,%xmm14
  movss  %xmm9,0x14(%rsp)
  movss  D359(%rip),%xmm9
  mulss  %xmm6,%xmm12
  mulss  %xmm3,%xmm9
  addss  D269(%rip),%xmm9
  movss  %xmm0,0x4(%rsp)
  movss  D374(%rip),%xmm0
  movaps %xmm14,%xmm15
  movss  %xmm14,0x28(%rsp)
  mulss  %xmm4,%xmm0
  mulss  %xmm1,%xmm15
  movss  %xmm0,0x8(%rsp)
  movss  D42(%rip),%xmm0
  movss  %xmm15,0x34(%rsp)
  mulss  %xmm2,%xmm0
  movss  %xmm0,0x10(%rsp)
  movss  D11(%rip),%xmm0
  mulss  %xmm3,%xmm0
  mulss  %xmm6,%xmm0
  movss  %xmm0,0x18(%rsp)
  movss  D273(%rip),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm9,%xmm0
  movss  0x4(%rsp),%xmm9
  mulss  %xmm4,%xmm9
  addss  %xmm0,%xmm9
  movss  0x8(%rsp),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm9,%xmm0
  movss  0xc(%rsp),%xmm9
  mulss  %xmm1,%xmm9
  addss  %xmm0,%xmm9
  movss  0x10(%rsp),%xmm0
  mulss  %xmm1,%xmm0
  addss  %xmm9,%xmm0
  movss  D502(%rip),%xmm9
  mulss  %xmm4,%xmm9
  addss  %xmm0,%xmm9
  movss  D111(%rip),%xmm0
  mulss  %xmm1,%xmm0
  addss  %xmm9,%xmm0
  movss  D378(%rip),%xmm9
  mulss  %xmm2,%xmm9
  mulss  %xmm14,%xmm9
  movss  D445(%rip),%xmm14
  mulss  %xmm3,%xmm14
  addss  %xmm0,%xmm9
  movaps %xmm14,%xmm0
  movss  D168(%rip),%xmm14
  mulss  %xmm6,%xmm0
  mulss  %xmm4,%xmm14
  addss  %xmm9,%xmm0
  movss  0x14(%rsp),%xmm9
  mulss  %xmm4,%xmm9
  mulss  %xmm8,%xmm9
  addss  %xmm0,%xmm9
  movaps %xmm14,%xmm0
  movss  D401(%rip),%xmm14
  mulss  %xmm13,%xmm0
  mulss  %xmm2,%xmm14
  addss  %xmm9,%xmm0
  movaps %xmm14,%xmm9
  mulss  %xmm15,%xmm9
  movss  D228(%rip),%xmm15
  mulss  %xmm3,%xmm15
  addss  %xmm0,%xmm9
  movaps %xmm15,%xmm0
  movss  D265(%rip),%xmm15
  mulss  %xmm12,%xmm0
  mulss  %xmm6,%xmm15
  addss  %xmm9,%xmm0
  movss  0x18(%rsp),%xmm9
  movss  %xmm15,0x2c(%rsp)
  mulss  %xmm2,%xmm15
  mulss  %xmm1,%xmm9
  movss  %xmm15,0x30(%rsp)
  addss  %xmm9,%xmm0
  movaps %xmm3,%xmm9
  mulss  %xmm3,%xmm9
  mulss  D403(%rip),%xmm9
  movaps %xmm9,%xmm14
  mulss  %xmm2,%xmm14
  movss  %xmm14,0x1c(%rsp)
  movss  D0(%rip),%xmm14
  mulss  %xmm3,%xmm14
  mulss  %xmm8,%xmm14
  movss  %xmm14,0x20(%rsp)
  movss  0x1c(%rsp),%xmm14
  mulss  %xmm1,%xmm14
  addss  %xmm0,%xmm14
  movaps %xmm15,%xmm0
  mulss  %xmm1,%xmm0
  addss  %xmm14,%xmm0
  movss  0x20(%rsp),%xmm14
  mulss  %xmm1,%xmm14
  addss  %xmm14,%xmm0
  movss  D172(%rip),%xmm14
  mulss  %xmm13,%xmm14
  movaps %xmm14,%xmm15
  mulss  %xmm1,%xmm15
  addss  %xmm0,%xmm15
  movaps %xmm5,%xmm0
  addss  %xmm10,%xmm0
  addss  %xmm7,%xmm0
  addss  %xmm11,%xmm0
  addss  0x24(%rsp),%xmm0
  ucomiss %xmm10,%xmm0
  jp     L1
  movaps %xmm10,%xmm0
  jne    L1
L5:
  movss  %xmm0,(%rbx)
  mov    0x98(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L24
  add    $0xa0,%rsp
  movaps %xmm15,%xmm0
  pop    %rbx
  ret
  nopl   0x0(%rax)
L1:
  movss  %xmm7,0x3c(%rsp)
  mulss  %xmm5,%xmm5
  movss  D191(%rip),%xmm7
  movss  D231(%rip),%xmm0
  mulss  D228(%rip),%xmm12
  mov    $0x2,%edi
  movss  %xmm15,0x6c(%rsp)
  mulss  %xmm4,%xmm7
  movss  %xmm14,0x60(%rsp)
  mulss  %xmm1,%xmm0
  movss  %xmm11,0x64(%rsp)
  movss  %xmm9,0x5c(%rsp)
  movss  %xmm5,0x38(%rsp)
  movss  %xmm10,0x54(%rsp)
  movaps %xmm7,%xmm5
  movss  D445(%rip),%xmm7
  subss  D371(%rip),%xmm5
  movss  %xmm13,0x68(%rsp)
  movss  %xmm4,0x50(%rsp)
  mulss  %xmm6,%xmm7
  movss  %xmm6,0x58(%rsp)
  addss  %xmm5,%xmm0
  movss  %xmm3,0x4c(%rsp)
  movss  %xmm2,0x48(%rsp)
  movss  %xmm8,0x44(%rsp)
  movss  %xmm1,0x40(%rsp)
  movaps %xmm7,%xmm5
  movss  D0(%rip),%xmm7
  addss  %xmm0,%xmm5
  movss  D74(%rip),%xmm0
  mulss  %xmm8,%xmm7
  mulss  %xmm4,%xmm0
  mulss  %xmm8,%xmm0
  addss  %xmm5,%xmm0
  movaps %xmm7,%xmm5
  mulss  %xmm1,%xmm5
  addss  %xmm12,%xmm0
  movss  D11(%rip),%xmm12
  mulss  %xmm6,%xmm12
  mulss  %xmm1,%xmm12
  addss  %xmm0,%xmm12
  movaps %xmm3,%xmm0
  mulss  D430(%rip),%xmm0
  mulss  %xmm2,%xmm0
  mulss  %xmm1,%xmm0
  addss  %xmm12,%xmm0
  addss  %xmm5,%xmm0
  call   <pow@plt>
  movss  0x48(%rsp),%xmm2
  mov    $0x2,%edi
  movss  D374(%rip),%xmm5
  movss  0x54(%rsp),%xmm10
  mulss  0x38(%rsp),%xmm0
  movss  0x4(%rsp),%xmm3
  mulss  %xmm2,%xmm5
  movss  0x50(%rsp),%xmm4
  movss  0x44(%rsp),%xmm8
  movss  0x14(%rsp),%xmm1
  movss  %xmm2,0x44(%rsp)
  addss  %xmm10,%xmm3
  movss  0x68(%rsp),%xmm13
  movss  0x58(%rsp),%xmm6
  movss  %xmm4,0x48(%rsp)
  mulss  %xmm8,%xmm1
  movss  0x3c(%rsp),%xmm7
  movss  %xmm8,0x50(%rsp)
  movss  %xmm0,0x38(%rsp)
  mulss  D14(%rip),%xmm6
  mulss  %xmm7,%xmm7
  movaps %xmm3,%xmm0
  movss  0x4c(%rsp),%xmm3
  addss  %xmm5,%xmm0
  movss  D263(%rip),%xmm5
  subss  D308(%rip),%xmm0
  mulss  %xmm4,%xmm5
  mulss  %xmm3,%xmm6
  movss  %xmm7,0x3c(%rsp)
  mulss  %xmm3,%xmm5
  addss  %xmm0,%xmm5
  movaps %xmm1,%xmm0
  movss  0x40(%rsp),%xmm1
  addss  %xmm5,%xmm0
  movss  D168(%rip),%xmm5
  mulss  %xmm13,%xmm5
  addss  %xmm0,%xmm5
  addss  %xmm5,%xmm6
  movss  D152(%rip),%xmm5
  mulss  %xmm4,%xmm5
  movaps %xmm5,%xmm0
  movaps %xmm4,%xmm5
  mulss  D159(%rip),%xmm5
  mulss  %xmm3,%xmm0
  mulss  %xmm2,%xmm5
  mulss  %xmm1,%xmm0
  mulss  %xmm1,%xmm5
  addss  %xmm6,%xmm0
  addss  %xmm5,%xmm0
  call   <pow@plt>
  mulss  0x3c(%rsp),%xmm0
  mov    $0x2,%edi
  movss  0x40(%rsp),%xmm1
  movss  D42(%rip),%xmm5
  movss  0x38(%rsp),%xmm6
  movss  0x44(%rsp),%xmm2
  movss  0x4c(%rsp),%xmm3
  mulss  %xmm1,%xmm5
  movss  0x48(%rsp),%xmm4
  movss  0x50(%rsp),%xmm8
  movss  0x64(%rsp),%xmm11
  movss  0x5c(%rsp),%xmm9
  addss  %xmm0,%xmm6
  movss  D273(%rip),%xmm0
  addss  0x8(%rsp),%xmm0
  mulss  %xmm11,%xmm11
  mulss  %xmm1,%xmm9
  addss  %xmm0,%xmm5
  movss  D378(%rip),%xmm0
  mulss  0x28(%rsp),%xmm0
  movss  %xmm6,0x4(%rsp)
  movss  %xmm11,0x14(%rsp)
  addss  %xmm5,%xmm0
  movss  D183(%rip),%xmm5
  mulss  %xmm2,%xmm5
  mulss  %xmm3,%xmm5
  mulss  %xmm4,%xmm5
  addss  %xmm5,%xmm0
  movss  D310(%rip),%xmm5
  mulss  %xmm8,%xmm5
  mulss  D344(%rip),%xmm8
  mulss  %xmm4,%xmm5
  movss  0x2c(%rsp),%xmm4
  movss  %xmm1,0x2c(%rsp)
  mulss  %xmm1,%xmm8
  mulss  %xmm1,%xmm4
  addss  %xmm0,%xmm5
  movss  D401(%rip),%xmm0
  mulss  0x34(%rsp),%xmm0
  movss  %xmm2,0x34(%rsp)
  movaps %xmm4,%xmm11
  movaps %xmm2,%xmm4
  mulss  D396(%rip),%xmm4
  addss  %xmm5,%xmm0
  mulss  %xmm3,%xmm4
  addss  %xmm0,%xmm9
  addss  %xmm9,%xmm11
  mulss  %xmm1,%xmm4
  addss  %xmm11,%xmm4
  addss  %xmm8,%xmm4
  movaps %xmm4,%xmm0
  call   <pow@plt>
  movss  0x2c(%rsp),%xmm1
  mov    $0x2,%edi
  movss  0x54(%rsp),%xmm10
  mulss  D28(%rip),%xmm1
  movss  0xc(%rsp),%xmm3
  mulss  0x14(%rsp),%xmm0
  movss  0x34(%rsp),%xmm2
  addss  0x4(%rsp),%xmm0
  addss  %xmm10,%xmm3
  movss  0x24(%rsp),%xmm6
  movss  0x60(%rsp),%xmm14
  mulss  %xmm6,%xmm6
  mulss  %xmm2,%xmm1
  movss  %xmm0,0x4(%rsp)
  movss  0x10(%rsp),%xmm0
  addss  %xmm3,%xmm0
  addss  D111(%rip),%xmm0
  movss  %xmm6,0x8(%rsp)
  addss  %xmm1,%xmm0
  movss  0x28(%rsp),%xmm1
  mulss  D102(%rip),%xmm1
  mulss  %xmm2,%xmm1
  addss  %xmm1,%xmm0
  addss  0x18(%rsp),%xmm0
  addss  0x1c(%rsp),%xmm0
  addss  0x30(%rsp),%xmm0
  addss  0x20(%rsp),%xmm0
  addss  %xmm14,%xmm0
  call   <pow@plt>
  mulss  0x8(%rsp),%xmm0
  addss  0x4(%rsp),%xmm0
  call   <sqrt@plt>
  movss  0x6c(%rsp),%xmm15
  jmp    L5
  nopl   0x0(%rax,%rax,1)
L28:
  pxor   %xmm10,%xmm10
  movaps %xmm10,%xmm0
  movaps %xmm10,%xmm1
  movaps %xmm10,%xmm7
  movaps %xmm10,%xmm5
  jmp    L82
L24:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: tag: D75
type_infered: byte[4]
name: retrieve_data
arguments: tag: D69
type_infered: f32
name: retrieve_data
arguments: tag: D345
type_infered: f32
name: retrieve_data
arguments: tag: D231
type_infered: byte[4]
name: retrieve_data
arguments: tag: D162
type_infered: f32
name: retrieve_data
arguments: tag: D357
type_infered: byte[4]
name: retrieve_data
arguments: tag: D74
type_infered: byte[4]
name: retrieve_data
arguments: tag: D191
type_infered: byte[4]
name: retrieve_data
arguments: tag: D359
type_infered: byte[4]
name: retrieve_data
arguments: tag: D269
type_infered: byte[4]
name: retrieve_data
arguments: tag: D374
type_infered: byte[4]
name: retrieve_data
arguments: tag: D42
type_infered: byte[4]
name: retrieve_data
arguments: tag: D11
type_infered: byte[4]
name: retrieve_data
arguments: tag: D273
type_infered: byte[4]
name: retrieve_data
arguments: tag: D502
type_infered: byte[4]
name: retrieve_data
arguments: tag: D111
type_infered: byte[4]
name: retrieve_data
arguments: tag: D378
type_infered: byte[4]
name: retrieve_data
arguments: tag: D445
type_infered: byte[4]
name: retrieve_data
arguments: tag: D168
type_infered: byte[4]
name: retrieve_data
arguments: tag: D401
type_infered: byte[4]
name: retrieve_data
arguments: tag: D228
type_infered: byte[4]
name: retrieve_data
arguments: tag: D265
type_infered: byte[4]
name: retrieve_data
arguments: tag: D403
type_infered: byte[4]
name: retrieve_data
arguments: tag: D0
type_infered: byte[4]
name: retrieve_data
arguments: tag: D172
type_infered: byte[4]
name: retrieve_data
arguments: tag: D371
type_infered: byte[4]
name: retrieve_data
arguments: tag: D430
type_infered: byte[4]
name: retrieve_data
arguments: tag: D14
type_infered: byte[4]
name: retrieve_data
arguments: tag: D263
type_infered: byte[4]
name: retrieve_data
arguments: tag: D308
type_infered: byte[4]
name: retrieve_data
arguments: tag: D152
type_infered: byte[4]
name: retrieve_data
arguments: tag: D159
type_infered: byte[4]
name: retrieve_data
arguments: tag: D183
type_infered: byte[4]
name: retrieve_data
arguments: tag: D310
type_infered: byte[4]
name: retrieve_data
arguments: tag: D344
type_infered: byte[4]
name: retrieve_data
arguments: tag: D396
type_infered: byte[4]
name: retrieve_data
arguments: tag: D28
type_infered: byte[4]
name: retrieve_data
arguments: tag: D102
type_infered: byte[4]

tool: {"D75": [0x89,0x88,0x88,0x3d]}

tool: D69: 15

tool: D345: 1

tool: {"D231": [0x15,0x2f,0xd6,0xbb]}

tool: D162: 18

tool: {"D357": [0x48,0xe1,0x8f,0x41]}

tool: {"D74": [0xe3,0x62,0x82,0xb9]}

tool: {"D191": [0x3b,0x12,0x80,0x3b]}

tool: {"D359": [0x46,0xac,0x6b,0xbd]}

tool: {"D269": [0xfc,0x0d,0xcf,0x39]}

tool: {"D374": [0x93,0x62,0xe7,0xbb]}

tool: {"D42": [0xf0,0xb1,0x40,0x3c]}

tool: {"D11": [0x11,0xec,0x2d,0xb9]}

tool: {"D273": [0x0c,0x6e,0x8e,0x3d]}

tool: {"D502": [0x15,0x8a,0xa4,0xb8]}

tool: {"D111": [0x94,0x6c,0x08,0x39]}

tool: {"D378": [0xf2,0xf9,0x7d,0x38]}

tool: {"D445": [0x3b,0x21,0xd7,0xb7]}

tool: {"D168": [0x9c,0x2d,0xad,0x39]}

tool: {"D401": [0x0e,0x76,0x42,0x39]}

tool: {"D228": [0xdf,0x84,0xff,0x38]}

tool: {"D265": [0xa4,0x24,0xcb,0xb8]}

tool: {"D403": [0xcc,0xe2,0x0d,0xb9]}

tool: {"D0": [0x04,0x53,0x3c,0x3a]}

tool: {"D172": [0x76,0xfb,0x3c,0xba]}

tool: {"D371": [0x46,0xac,0x6b,0x3d]}

tool: {"D430": [0xcc,0xe2,0x8d,0xb9]}

tool: {"D14": [0xa7,0xa3,0xbf,0x39]}

tool: {"D263": [0x3b,0x21,0x57,0xb8]}

tool: {"D308": [0x15,0x8a,0xa4,0x38]}

tool: {"D152": [0x11,0xec,0xad,0xb9]}

tool: {"D159": [0xa4,0x24,0x4b,0xb9]}

tool: {"D183": [0xe3,0x62,0x02,0xba]}

tool: {"D310": [0x35,0xe2,0x81,0x3a]}

tool: {"D344": [0x98,0xbc,0x0d,0xbb]}

tool: {"D396": [0x04,0x53,0xbc,0x3a]}

tool: {"D28": [0xf2,0xf9,0xfd,0x38]}

tool: {"D102": [0x8a,0xd8,0x11,0x3a]}

assistant: ```c
float target_phi(float *x, float *dx, int m) {
  int ncoeff = 20;
  float avdat = 0.3949477E-03;
  float xmin[10] = {-0.15000E+02, -0.15000E+02, -0.18000E+02, -0.18017E+02, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00};
  float xmax[10] = {0.15000E+02, 0.15000E+02, 0.18000E+02, 0.17985E+02, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00, 0.00000E+00};
  float scale[10] = {0};
  float coeff[21] = {-0.22365155E-07, -0.57537340E-01, 0.69545835E-01, 0.39084232E-02, -0.70613115E-02, -0.65363743E-02, 0.11761174E-01, -0.78458492E-04, 0.13010419E-03, 0.60552680E-04, -0.25645471E-04, -0.24869209E-03, 0.33031113E-03, 0.18545261E-03, 0.12184097E-03, -0.16586507E-03, -0.13531296E-03, -0.96866192E-04, 0.71840012E-03, -0.72091015E-03, 0.};
  int ientry = 0;
  int i;
  if (ientry == 0) {
    ientry = 1;
    for (i = 0; i < m; i++) {
      if (xmin[i] == xmax[i])
        continue;
      scale[i] = 2. / (xmax[i] - xmin[i]);
    }
  }
  float x1 = 1. + (x[0] - xmax[0]) * scale[0];
  float dx1 = dx[0] * scale[0];
  float x2 = 1. + (x[1] - xmax[1]) * scale[1];
  float dx2 = dx[1] * scale[1];
  float x3 = 1. + (x[2] - xmax[2]) * scale[2];
  float dx3 = dx[2] * scale[2];
  float x4 = 1. + (x[3] - xmax[3]) * scale[3];
  float dx4 = dx[3] * scale[3];
  float x11 = x1;
  float x12 = x11 * x1;
  float x21 = x2;
  float x22 = x21 * x2;
  float x23 = x22 * x2;
  float x31 = x3;
  float x32 = x31 * x3;
  float x33 = x32 * x3;
  float x41 = x4;
  float x42 = x41 * x4;
  float x43 = x42 * x4;
  float v_target_phi = avdat + coeff[0] + coeff[1] * x11 + coeff[2] * x31 + coeff[3] * x11 * x21 + coeff[4] * x21 * x31 + coeff[5] * x11 * x41 + coeff[6] * x31 * x41 + coeff[7] * x21;
  v_target_phi = v_target_phi + coeff[8] * x41 + coeff[9] * x31 * x42 + coeff[10] * x11 * x22 + coeff[11] * x11 * x21 * x32 + coeff[12] * x21 * x33 + coeff[13] * x31 * x43 + coeff[14] * x11 * x23 + coeff[15] * x11 * x22 * x41 + coeff[16] * x12 * x31 * x41;
  v_target_phi = v_target_phi + coeff[17] * x22 * x31 * x41 + coeff[18] * x11 * x32 * x41 + coeff[19] * x33 * x41;
  float dxall = 0 + dx1 + dx2 + dx3 + dx4;
  float dv_target_phi = dxall == 0 ? 0 : sqrt(+dx1 * dx1 * pow(0 + coeff[1] + coeff[3] * x21 + coeff[5] * x41 + coeff[10] * x22 + coeff[11] * x21 * x32 + coeff[14] * x23 + coeff[15] * x22 * x41 + 2 * coeff[16] * x11 * x31 * x41 + coeff[18] * x32 * x41, 2) + dx2 * dx2 * pow(0 + coeff[3] * x11 + coeff[4] * x31 + coeff[7] + 2 * coeff[10] * x21 * x11 + coeff[11] * x11 * x32 + coeff[12] * x33 + 3 * coeff[14] * x22 * x11 + 2 * coeff[15] * x21 * x11 * x41 + 2 * coeff[17] * x21 * x31 * x41, 2) + dx3 * dx3 * pow(0 + coeff[2] + coeff[4] * x21 + coeff[6] * x41 + coeff[9] * x42 + 2 * coeff[11] * x31 * x11 * x21 + 3 * coeff[12] * x32 * x21 + coeff[13] * x43 + coeff[16] * x12 * x41 + coeff[17] * x22 * x41 + 2 * coeff[18] * x31 * x11 * x41 + 3 * coeff[19] * x32 * x41, 2) + dx4 * dx4 * pow(0 + coeff[5] * x11 + coeff[6] * x31 + coeff[8] + 2 * coeff[9] * x41 * x31 + 3 * coeff[13] * x42 * x31 + coeff[15] * x11 * x22 + coeff[16] * x12 * x31 + coeff[17] * x22 * x31 + coeff[18] * x11 * x32 + coeff[19] * x33, 2));
  dx[0] = dv_target_phi;
  return v_target_phi;
}
```