user: Demonstrate the C code that generates the assembly output below:

```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    L32
  movss  D235(%rip),%xmm5
  cmp    $0x1,%edx
  je     L19
  movss  %xmm5,0x74(%rsp)
  cmp    $0x2,%edx
  je     L19
  movl   $0x3d638e39,0x78(%rsp)
  cmp    $0x3,%edx
  je     L19
  movl   $0x3d638c9b,0x7c(%rsp)
L19:
  movss  0x74(%rsp),%xmm7
  movss  0x78(%rsp),%xmm1
  pxor   %xmm10,%xmm10
  movss  0x7c(%rsp),%xmm0
L69:
  movss  D152(%rip),%xmm3
  movss  (%rdi),%xmm2
  movss  0x4(%rdi),%xmm4
  movss  D54(%rip),%xmm6
  movss  D199(%rip),%xmm9
  subss  %xmm3,%xmm2
  subss  %xmm3,%xmm4
  movss  0x8(%rdi),%xmm3
  subss  D80(%rip),%xmm3
  mulss  %xmm5,%xmm2
  mulss  %xmm1,%xmm3
  mulss  0x8(%rbx),%xmm1
  mulss  %xmm7,%xmm4
  mulss  (%rbx),%xmm5
  addss  %xmm6,%xmm2
  mulss  0x4(%rbx),%xmm7
  addss  %xmm6,%xmm3
  movss  %xmm1,0x20(%rsp)
  movss  0xc(%rdi),%xmm1
  subss  D132(%rip),%xmm1
  addss  %xmm6,%xmm4
  mulss  %xmm2,%xmm9
  movaps %xmm3,%xmm12
  mulss  %xmm0,%xmm1
  mulss  0xc(%rbx),%xmm0
  movaps %xmm4,%xmm8
  movaps %xmm4,%xmm14
  mulss  %xmm4,%xmm8
  addss  %xmm6,%xmm1
  movaps %xmm3,%xmm6
  mulss  %xmm3,%xmm6
  movss  %xmm0,0x24(%rsp)
  movss  D30(%rip),%xmm0
  mulss  %xmm8,%xmm14
  mulss  %xmm4,%xmm0
  movaps %xmm1,%xmm15
  movaps %xmm1,%xmm13
  mulss  %xmm1,%xmm15
  mulss  %xmm6,%xmm12
  movss  %xmm0,0x8(%rsp)
  movss  D337(%rip),%xmm0
  movaps %xmm15,%xmm11
  movss  %xmm15,0x30(%rsp)
  mulss  %xmm1,%xmm11
  movss  %xmm12,0x28(%rsp)
  mulss  %xmm3,%xmm0
  movss  D276(%rip),%xmm12
  mulss  %xmm2,%xmm12
  mulss  %xmm11,%xmm13
  movss  %xmm13,0x2c(%rsp)
  movss  D434(%rip),%xmm13
  mulss  %xmm2,%xmm13
  movss  %xmm13,0xc(%rsp)
  movss  D514(%rip),%xmm13
  mulss  %xmm3,%xmm13
  movss  %xmm13,0x10(%rsp)
  movaps %xmm9,%xmm13
  movss  D465(%rip),%xmm9
  mulss  %xmm2,%xmm9
  mulss  %xmm14,%xmm9
  movss  %xmm9,0x14(%rsp)
  movss  D109(%rip),%xmm9
  mulss  %xmm2,%xmm9
  addss  D209(%rip),%xmm9
  addss  %xmm9,%xmm0
  movaps %xmm12,%xmm9
  mulss  %xmm4,%xmm9
  addss  %xmm0,%xmm9
  movss  0x8(%rsp),%xmm0
  mulss  %xmm3,%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  D4(%rip),%xmm9
  mulss  %xmm1,%xmm9
  addss  %xmm0,%xmm9
  movss  D34(%rip),%xmm0
  mulss  %xmm4,%xmm0
  addss  %xmm9,%xmm0
  movss  D252(%rip),%xmm9
  mulss  %xmm3,%xmm9
  mulss  0x2c(%rsp),%xmm9
  addss  %xmm0,%xmm9
  movaps %xmm13,%xmm0
  mulss  %xmm4,%xmm0
  mulss  %xmm6,%xmm0
  addss  %xmm9,%xmm0
  movss  D182(%rip),%xmm9
  mulss  %xmm4,%xmm9
  mulss  0x28(%rsp),%xmm9
  addss  %xmm0,%xmm9
  movss  D345(%rip),%xmm0
  mulss  %xmm2,%xmm0
  mulss  %xmm11,%xmm0
  addss  %xmm9,%xmm0
  movss  0x14(%rsp),%xmm9
  mulss  %xmm1,%xmm9
  addss  %xmm0,%xmm9
  movss  D166(%rip),%xmm0
  mulss  %xmm4,%xmm0
  mulss  %xmm6,%xmm0
  addss  %xmm9,%xmm0
  movss  D56(%rip),%xmm9
  mulss  %xmm3,%xmm9
  mulss  %xmm15,%xmm9
  addss  %xmm9,%xmm0
  movss  D141(%rip),%xmm9
  mulss  %xmm2,%xmm9
  mulss  %xmm8,%xmm9
  movss  %xmm9,0x18(%rsp)
  movaps %xmm2,%xmm9
  mulss  %xmm2,%xmm9
  mulss  D97(%rip),%xmm9
  movaps %xmm9,%xmm15
  mulss  %xmm3,%xmm15
  movss  %xmm15,0x1c(%rsp)
  movss  D74(%rip),%xmm15
  mulss  %xmm2,%xmm15
  mulss  %xmm14,%xmm15
  addss  %xmm15,%xmm0
  movss  0x18(%rsp),%xmm15
  mulss  %xmm1,%xmm15
  addss  %xmm15,%xmm0
  movss  0x1c(%rsp),%xmm15
  mulss  %xmm1,%xmm15
  addss  %xmm0,%xmm15
  movss  D171(%rip),%xmm0
  mulss  %xmm2,%xmm0
  mulss  %xmm6,%xmm0
  movss  %xmm0,0x34(%rsp)
  mulss  %xmm1,%xmm0
  addss  %xmm0,%xmm15
  movaps %xmm5,%xmm0
  addss  %xmm10,%xmm0
  addss  %xmm7,%xmm0
  addss  0x20(%rsp),%xmm0
  addss  0x24(%rsp),%xmm0
  ucomiss %xmm10,%xmm0
  jp     L88
  movaps %xmm10,%xmm0
  jne    L88
L80:
  movss  %xmm0,(%rbx)
  mov    0x98(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L46
  add    $0xa0,%rsp
  movaps %xmm15,%xmm0
  pop    %rbx
  ret
  nopl   0x0(%rax)
L88:
  movss  %xmm7,0x3c(%rsp)
  mulss  %xmm5,%xmm5
  mov    $0x2,%edi
  movss  D434(%rip),%xmm7
  movss  D276(%rip),%xmm0
  movss  %xmm15,0x6c(%rsp)
  mulss  %xmm1,%xmm7
  movss  %xmm11,0x5c(%rsp)
  mulss  %xmm4,%xmm0
  movss  %xmm9,0x68(%rsp)
  subss  D342(%rip),%xmm0
  movss  %xmm10,0x54(%rsp)
  movss  %xmm5,0x38(%rsp)
  movss  %xmm13,0x64(%rsp)
  movaps %xmm7,%xmm5
  movss  D345(%rip),%xmm7
  movss  %xmm12,0x50(%rsp)
  addss  %xmm0,%xmm5
  movss  D199(%rip),%xmm0
  movss  %xmm4,0x60(%rsp)
  mulss  %xmm11,%xmm7
  movss  %xmm8,0x58(%rsp)
  mulss  %xmm4,%xmm0
  movss  %xmm2,0x4c(%rsp)
  movss  %xmm3,0x48(%rsp)
  movss  %xmm6,0x44(%rsp)
  movss  %xmm1,0x40(%rsp)
  mulss  %xmm6,%xmm0
  addss  %xmm5,%xmm0
  movaps %xmm7,%xmm5
  movaps %xmm2,%xmm7
  mulss  D113(%rip),%xmm7
  addss  %xmm0,%xmm5
  movss  D465(%rip),%xmm0
  mulss  %xmm14,%xmm0
  mulss  D74(%rip),%xmm14
  mulss  %xmm1,%xmm0
  addss  %xmm5,%xmm0
  movaps %xmm7,%xmm5
  movss  D171(%rip),%xmm7
  mulss  %xmm3,%xmm5
  mulss  %xmm6,%xmm7
  addss  %xmm0,%xmm14
  movss  D141(%rip),%xmm0
  mulss  %xmm8,%xmm0
  mulss  %xmm1,%xmm5
  mulss  %xmm1,%xmm0
  addss  %xmm14,%xmm0
  addss  %xmm5,%xmm0
  movaps %xmm7,%xmm5
  mulss  %xmm1,%xmm5
  addss  %xmm5,%xmm0
  call   <pow@plt>
  movss  0x48(%rsp),%xmm3
  movss  D30(%rip),%xmm4
  mov    $0x2,%edi
  movss  0x58(%rsp),%xmm8
  movss  D216(%rip),%xmm5
  mulss  %xmm3,%xmm4
  movss  0x54(%rsp),%xmm10
  movss  0x50(%rsp),%xmm12
  movss  %xmm3,0x50(%rsp)
  movss  0x44(%rsp),%xmm6
  mulss  %xmm8,%xmm5
  movss  0x64(%rsp),%xmm13
  addss  %xmm10,%xmm12
  movss  0x4c(%rsp),%xmm2
  movss  0x40(%rsp),%xmm1
  mulss  %xmm6,%xmm13
  movss  0x3c(%rsp),%xmm7
  movss  %xmm6,0x4c(%rsp)
  mulss  0x38(%rsp),%xmm0
  movss  %xmm2,0x44(%rsp)
  addss  %xmm4,%xmm12
  movss  D166(%rip),%xmm4
  mulss  %xmm7,%xmm7
  subss  D161(%rip),%xmm12
  mulss  %xmm2,%xmm5
  mulss  %xmm6,%xmm4
  mulss  D154(%rip),%xmm8
  addss  %xmm12,%xmm13
  movss  D182(%rip),%xmm12
  mulss  0x28(%rsp),%xmm12
  movss  %xmm0,0x38(%rsp)
  movss  %xmm7,0x3c(%rsp)
  mulss  %xmm1,%xmm5
  movaps %xmm8,%xmm0
  addss  %xmm13,%xmm12
  mulss  %xmm2,%xmm0
  addss  %xmm12,%xmm5
  addss  %xmm4,%xmm5
  movss  0x60(%rsp),%xmm4
  movaps %xmm4,%xmm8
  movss  %xmm4,0x48(%rsp)
  mulss  D339(%rip),%xmm8
  addss  %xmm5,%xmm0
  mulss  %xmm2,%xmm8
  mulss  %xmm1,%xmm8
  addss  %xmm8,%xmm0
  call   <pow@plt>
  mulss  0x3c(%rsp),%xmm0
  movss  0x38(%rsp),%xmm6
  mov    $0x2,%edi
  movss  0x40(%rsp),%xmm1
  movss  D337(%rip),%xmm5
  addss  0x8(%rsp),%xmm5
  movss  0x50(%rsp),%xmm3
  movss  0x44(%rsp),%xmm2
  movss  0x48(%rsp),%xmm4
  movss  0x68(%rsp),%xmm9
  movss  0x20(%rsp),%xmm7
  movss  %xmm3,0x3c(%rsp)
  addss  %xmm0,%xmm6
  movss  D514(%rip),%xmm0
  movss  %xmm2,0x38(%rsp)
  mulss  %xmm1,%xmm9
  mulss  %xmm1,%xmm0
  movss  %xmm6,0x28(%rsp)
  movss  0x4c(%rsp),%xmm6
  mulss  %xmm7,%xmm7
  mulss  D103(%rip),%xmm6
  addss  %xmm5,%xmm0
  movss  D252(%rip),%xmm5
  mulss  0x2c(%rsp),%xmm5
  movss  %xmm1,0x2c(%rsp)
  movss  %xmm7,0x20(%rsp)
  mulss  %xmm4,%xmm6
  addss  %xmm5,%xmm0
  movss  D189(%rip),%xmm5
  mulss  %xmm3,%xmm5
  mulss  %xmm2,%xmm5
  mulss  %xmm4,%xmm5
  addss  %xmm0,%xmm5
  movss  D480(%rip),%xmm0
  mulss  %xmm3,%xmm0
  addss  %xmm5,%xmm6
  mulss  %xmm4,%xmm0
  movss  D56(%rip),%xmm4
  mulss  0x30(%rsp),%xmm4
  addss  %xmm6,%xmm0
  addss  %xmm0,%xmm4
  movaps %xmm3,%xmm0
  mulss  D159(%rip),%xmm0
  addss  %xmm4,%xmm9
  mulss  %xmm2,%xmm0
  mulss  %xmm1,%xmm0
  addss  %xmm9,%xmm0
  call   <pow@plt>
  mulss  0x20(%rsp),%xmm0
  mov    $0x2,%edi
  movss  0x5c(%rsp),%xmm11
  mulss  D121(%rip),%xmm11
  addss  0x28(%rsp),%xmm0
  movss  0x54(%rsp),%xmm10
  movss  0xc(%rsp),%xmm2
  movss  0x3c(%rsp),%xmm3
  movss  0x30(%rsp),%xmm4
  addss  %xmm10,%xmm2
  mulss  D437(%rip),%xmm4
  movss  %xmm0,0x8(%rsp)
  movss  0x10(%rsp),%xmm0
  movss  0x2c(%rsp),%xmm1
  mulss  D60(%rip),%xmm1
  mulss  %xmm3,%xmm11
  movss  0x24(%rsp),%xmm7
  addss  %xmm2,%xmm0
  movss  0x38(%rsp),%xmm2
  addss  D4(%rip),%xmm0
  mulss  %xmm7,%xmm7
  mulss  %xmm4,%xmm2
  mulss  %xmm3,%xmm1
  addss  %xmm11,%xmm0
  movss  %xmm7,0x20(%rsp)
  addss  %xmm2,%xmm0
  addss  0x14(%rsp),%xmm0
  addss  %xmm1,%xmm0
  addss  0x18(%rsp),%xmm0
  addss  0x1c(%rsp),%xmm0
  addss  0x34(%rsp),%xmm0
  call   <pow@plt>
  mulss  0x20(%rsp),%xmm0
  addss  0x8(%rsp),%xmm0
  call   <sqrt@plt>
  movss  0x6c(%rsp),%xmm15
  jmp    L80
  nopl   0x0(%rax)
L32:
  pxor   %xmm10,%xmm10
  movaps %xmm10,%xmm0
  movaps %xmm10,%xmm1
  movaps %xmm10,%xmm7
  movaps %xmm10,%xmm5
  jmp    L69
L46:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D235
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D152
type: f32
name: extract_symbolic_data
arguments: data_tag: D54
type: f32
name: extract_symbolic_data
arguments: data_tag: D199
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D80
type: f32
name: extract_symbolic_data
arguments: data_tag: D132
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D30
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D337
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D276
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D434
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D514
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D465
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D109
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D209
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D4
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D34
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D252
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D182
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D345
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D166
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D56
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D141
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D97
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D74
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D171
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D342
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D113
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D216
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D161
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D154
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D339
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D103
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D189
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D480
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D159
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D121
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D437
type: byte[4]
name: extract_symbolic_data
arguments: data_tag: D60
type: byte[4]

tool: {"D235": [0x89,0x88,0x88,0x3d]}

tool: D152: 15

tool: D54: 1

tool: {"D199": [0x03,0x2d,0x4d,0x38]}

tool: D80: 18

tool: {"D132": [0x2f,0xdd,0x8f,0x41]}

tool: {"D30": [0xfb,0x33,0xe4,0xbb]}

tool: {"D337": [0x59,0xb9,0x8d,0x3d]}

tool: {"D276": [0x1e,0x43,0x7a,0x3b]}

tool: {"D434": [0x1f,0x9b,0xd3,0xbb]}

tool: {"D514": [0x2f,0x9e,0x3f,0x3c]}

tool: {"D465": [0x85,0x2f,0xe6,0xb7]}

tool: {"D109": [0xb9,0x97,0x6a,0xbd]}

tool: {"D209": [0x68,0x31,0x17,0x3b]}

tool: {"D4": [0x58,0x4e,0xca,0x39]}

tool: {"D34": [0x05,0xe6,0x6f,0xb9]}

tool: {"D252": [0x89,0xa6,0x1c,0x38]}

tool: {"D182": [0xbf,0x79,0xb4,0x36]}

tool: {"D345": [0xa3,0x92,0x0d,0x39]}

tool: {"D166": [0xe7,0x76,0xb6,0xb6]}

tool: {"D56": [0x57,0xe2,0xe8,0x37]}

tool: {"D141": [0xc3,0x37,0x56,0xb9]}

tool: {"D97": [0x2b,0x84,0xea,0x38]}

tool: {"D74": [0x7f,0xbd,0xcd,0x38]}

tool: {"D171": [0x72,0x79,0x5b,0xb9]}

tool: {"D342": [0xb9,0x97,0x6a,0x3d]}

tool: {"D113": [0x2b,0x84,0x6a,0x39]}

tool: {"D216": [0xa4,0xa3,0xac,0xb8]}

tool: {"D161": [0x05,0xe6,0x6f,0x39]}

tool: {"D154": [0x1f,0x4e,0x9a,0x39]}

tool: {"D339": [0xc3,0x37,0xd6,0xb9]}

tool: {"D103": [0x4f,0x5b,0x87,0x37]}

tool: {"D189": [0x03,0x2d,0xcd,0x38]}

tool: {"D480": [0xe7,0x76,0x36,0xb7]}

tool: {"D159": [0x72,0x79,0xdb,0xb9]}

tool: {"D121": [0x89,0xa6,0x1c,0x39]}

tool: {"D437": [0xf4,0x5b,0xd4,0x39]}

tool: {"D60": [0x57,0xe2,0x68,0x38]}

assistant: ```c
float target_phi(float *x, float *dx, int m) {
  int ncoeff = 20;
  float avdat = 0.2306953E-02;
  float xmin[10] = {-0.15000E+02, -0.15000E+02, -0.18000E+02, -0.18018E+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, 0.17983E+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] = {0.68938235E-07, -0.57273600E-01, 0.69201179E-01, 0.38186978E-02, -0.69642044E-02, -0.64577009E-02, 0.11695429E-01, 0.38586813E-03, -0.22878505E-03, 0.37348396E-04, 0.48917729E-04, 0.53785911E-05, 0.13501434E-03, -0.27440265E-04, -0.54378647E-05, 0.27761953E-04, 0.98104581E-04, -0.20429403E-03, 0.11182608E-03, -0.20930709E-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 x44 = x43 * 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] * x41;
  v_target_phi = v_target_phi + coeff[8] * x21 + coeff[9] * x31 * x44 + coeff[10] * x11 * x21 * x32 + coeff[11] * x21 * x33 + coeff[12] * x11 * x43 + coeff[13] * x11 * x23 * x41 + coeff[14] * x21 * x32 + coeff[15] * x31 * x42 + coeff[16] * x11 * x23;
  v_target_phi = v_target_phi + coeff[17] * x11 * x22 * x41 + coeff[18] * x12 * x31 * x41 + coeff[19] * x11 * x32 * 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] * x21 * x32 + coeff[12] * x43 + coeff[13] * x23 * x41 + coeff[16] * x23 + coeff[17] * x22 * x41 + 2 * coeff[18] * x11 * x31 * x41 + coeff[19] * x32 * x41, 2) + dx2 * dx2 * pow(0 + coeff[3] * x11 + coeff[4] * x31 + coeff[8] + coeff[10] * x11 * x32 + coeff[11] * x33 + 3 * coeff[13] * x22 * x11 * x41 + coeff[14] * x32 + 3 * coeff[16] * x22 * x11 + 2 * coeff[17] * x21 * x11 * x41, 2) + dx3 * dx3 * pow(0 + coeff[2] + coeff[4] * x21 + coeff[6] * x41 + coeff[9] * x44 + 2 * coeff[10] * x31 * x11 * x21 + 3 * coeff[11] * x32 * x21 + 2 * coeff[14] * x31 * x21 + coeff[15] * x42 + coeff[18] * x12 * x41 + 2 * coeff[19] * x31 * x11 * x41, 2) + dx4 * dx4 * pow(0 + coeff[5] * x11 + coeff[6] * x31 + coeff[7] + 4 * coeff[9] * x43 * x31 + 3 * coeff[12] * x42 * x11 + coeff[13] * x11 * x23 + 2 * coeff[15] * x41 * x31 + coeff[17] * x11 * x22 + coeff[18] * x12 * x31 + coeff[19] * x11 * x32, 2));
  dx[0] = dv_target_phi;
  return v_target_phi;
}
```