85 lines
1.6 KiB
Plaintext
85 lines
1.6 KiB
Plaintext
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-------- TP11 : Math --------
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1.
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# include <stdio.h>
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# include <stdlib.h>
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# include <math.h>
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# define M_PI 3.14159265358979323846264338379
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int main(void) {
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printf("%f\n", sqrt(fabs(log(0.5))));
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printf("%f\n", sin(M_PI/6.0));
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printf("%f\n", atan(pow(13.0, 2.0)));
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printf("%f\n", pow(exp(-1.0), 4.0));
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printf("%f\n", log(-3.0));
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printf("%f\n", pow(sqrt(2.0), 2.0));
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return EXIT_SUCCESS;
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}
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2.
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# include <stdio.h>
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# include <stdlib.h>
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# include <math.h>
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# define M_PI 3.14159265358979323846264338379
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int main(void) {
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double xa;
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double xb;
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double ya;
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double yb;
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printf("Entrez xa : ");
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scanf("%lf", &xa);
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getchar();
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printf("\nEntrez xb : ");
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scanf("%lf", &xb);
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getchar();
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printf("\nEntrez ya : ");
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scanf("%lf", &ya);
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getchar();
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printf("\nEntrez yb : ");
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scanf("%lf", &yb);
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getchar();
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printf("Distance : %f", sqrt(pow((ya - xa), 2.0) + pow((yb - ya), 2.0)));
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return EXIT_SUCCESS;
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}
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3.
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# include <stdio.h>
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# include <stdlib.h>
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# include <math.h>
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# define M_PI 3.14159265358979323846264338379
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int main(void) {
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double rayon;
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double angle;
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printf("Entrez rayon : ");
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scanf("%lf", &rayon);
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getchar();
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printf("\nEntrez angle (en rad) : ");
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scanf("%lf", &angle);
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getchar();
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printf("x : %f ; y : %f", rayon*cos(angle), rayon*sin(angle));
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return EXIT_SUCCESS;
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}
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4.
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# include <stdio.h>
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# include <stdlib.h>
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# include <math.h>
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# define M_PI 3.14159265358979323846264338379
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int main(void) {
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double reel;
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printf("Entrez un réel : ");
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scanf("%lf", &reel);
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printf("chiffre des unités : %d\n", (int) floor(reel) % 10);
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printf("chiffre des dixièmes : %d\n", (int) floor(reel * 10) % 10);
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return EXIT_SUCCESS;
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}
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