質問編集履歴
2
test
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File without changes
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test
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@@ -88,4 +88,90 @@
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88
88
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89
89
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```
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90
90
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91
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+
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92
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+
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93
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訂正
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94
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95
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```c
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96
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97
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98
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99
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#include <stdio.h>
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100
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101
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#include <math.h>
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102
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103
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#include<stdlib.h>
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104
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105
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double f(double x);
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106
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+
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107
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double power(double x, int n);
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108
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109
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int main(void){
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110
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111
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double eps=1.0e-13;
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112
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+
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113
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+
double a=1.0, b=2.0;
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114
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+
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115
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+
double u,c;
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116
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+
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117
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int k;
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118
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+
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119
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120
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121
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for(k=0; fabs(a-b)>eps; k++){
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122
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123
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c=(a+b)/2;
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124
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+
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125
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if(f(c)*f(a)<=0) b=c;
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126
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+
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127
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else a=c;
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128
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+
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129
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}
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130
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+
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131
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printf("ans=%.13f \n",c);
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132
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+
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133
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u=a-b;
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134
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135
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printf("k=%d,a=%lf,b=%lf,u(a-k)=%lf\n",k,a,b,u);
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136
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+
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137
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return 0;
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138
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+
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139
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}
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140
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+
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141
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+
double f(double x){
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142
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+
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143
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+
double x2,y,k;
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144
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+
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145
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+
double exp(double x);
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146
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+
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147
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k=exp(x);
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148
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+
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149
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x2=power(x,2);
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150
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+
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151
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+
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152
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+
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153
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y=k-x2-2;
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154
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+
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155
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return y;
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156
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+
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157
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}
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158
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+
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159
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+
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160
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+
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161
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double power(double x, int n){
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162
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+
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163
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if(n==0) return 1;
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164
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+
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165
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else
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166
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+
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167
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+
return x*power(x,n-1);
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168
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+
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169
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}
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170
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+
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171
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+
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172
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+
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173
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+
```
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174
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+
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175
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+
‘exp’に対する定義されていない参照です。とメッセージがでます。。
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176
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+
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91
177
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他にも間違えている点がありましたら、教えていただけると嬉しいです。
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1
test
CHANGED
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File without changes
|
test
CHANGED
|
@@ -58,11 +58,15 @@
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|
58
58
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|
59
59
|
double x2,y;
|
|
60
60
|
|
|
61
|
+
float expf(float x);
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62
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+
|
|
63
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+
|
|
64
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+
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61
65
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x2=power(x,2);
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62
66
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63
67
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64
68
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65
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-
y=exp()-x2-2;
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69
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+
y=expf(x)-x2-2;
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66
70
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67
71
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return y;
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68
72
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